Hand, Foot and Mouth Disease: Symptoms and Care

What hand, foot and mouth disease means

Hand, foot and mouth disease, often shortened to HFMD, is a contagious viral illness best known for painful mouth sores and a rash on the hands and feet. It is especially common in young children, but adults can catch it too. Most people recover without specific treatment within seven to ten days. The main practical challenge is often not the appearance of the spots: it is helping someone with a sore mouth drink enough while recognising when home care is no longer enough. This guide separates those decisions from school attendance and infection prevention, because feeling better does not immediately mean all virus shedding has stopped. It provides general information, not a diagnosis or an individual treatment plan. A very unwell child needs assessment rather than a comparison with photographs. [1]

Recognising the usual symptoms

Early symptoms can include fever, a sore throat, reduced appetite and feeling generally unwell. Painful spots or blisters may then develop inside the mouth, including on the tongue and inner cheeks. A young child may show mouth pain by drooling more, refusing a drink or accepting only cool fluids rather than explaining what hurts. The skin rash commonly affects palms and soles, but may also involve the buttocks, arms or legs. It can be flat or slightly raised and may blister; it is often not itchy. These features suggest a pattern, not a home diagnostic test. Pay attention to behaviour, drinking and alertness alongside the rash. Contact a clinician if fever continues beyond three days, symptoms are severe, or improvement has not occurred by about ten days. Seek advice earlier for very young babies, especially those under six months. [2]

The rash and mouth sores may not arrive together

HFMD does not always appear in a neat sequence across all three areas named in the illness. The American Academy of Pediatrics notes that only one, a few or all of the typical locations may have blisters. That matters when a child initially looks as if they have an ordinary cold, then develops mouth discomfort or hand spots later. A normal-looking foot on the first day does not settle the diagnosis either way. The first few days can be the most uncomfortable, followed by gradual improvement rather than an immediate return to normal eating and activity. Some children develop peeling of fingers or toes a week or two later. If the overall illness is improving, that is different from a child becoming newly feverish or unwell. Record when symptoms began so a clinician can distinguish the initial illness from a new problem. [8]

Why this is not livestock foot-and-mouth disease

The similar names cause understandable confusion, but human HFMD and livestock foot-and-mouth disease are different infections. HFMD is caused by several enteroviruses, including coxsackieviruses; the animal disease affects livestock such as cattle, sheep, goats and pigs. Reading agricultural outbreak advice will therefore not tell you how to care for a child with mouth sores. Our separate guide to foot-and-mouth disease in livestock explains that distinction. Human HFMD spreads through close contact, respiratory secretions, blister fluid, contaminated objects and stool. People are usually most contagious during the first week, but can spread virus for days or weeks after symptoms disappear, including without obvious symptoms. This explains why a household can see staggered cases and why hand hygiene still matters after the rash has faded. It does not mean a child must automatically stay out of school for all those weeks. [3]

How a clinician checks the diagnosis

A clinician usually considers the combination of symptoms, the person’s age and the appearance of the mouth sores and rash. Many straightforward cases do not need laboratory confirmation. Occasionally a mouth swab or stool sample helps identify the virus, particularly when the presentation or circumstances require clarification. A consultation is useful when the pattern is unusual, pain prevents drinking or you are uncertain what you are seeing. Describe the sequence rather than offering only the label “HFMD”: mention the first fever, where spots appeared, how much drinking has changed and whether anyone nearby has been ill. Photographs can help show changes, but they do not replace an examination when the person is deteriorating. Do not delay urgent care while trying to obtain a better picture of the rash or waiting for a test to confirm a suspected infection. [7]

An unusual presentation deserves a fresh assessment

Singapore’s Communicable Diseases Agency describes HFMD as a clinical diagnosis and reserves consideration of laboratory testing for circumstances such as atypical illness or public health investigations. A mouth-only illness or an unfamiliar rash may need a different explanation. For a parent, the useful lesson is not to learn a long list of lookalike diseases, but to avoid assuming that every subsequent symptom belongs to the first diagnosis. If a clinician has already assessed your child and new symptoms emerge, explain what has changed since that visit. An initial reassuring assessment describes that point in time, not a promise that review will never be needed. Bring the actual medicine packaging if you have started treatment, particularly when more than one caregiver has given doses. This makes the next decision more accurate and avoids confusing medication effects, ongoing pain and progression of the illness. [25]

When a mouth ulcer needs its own review

A mouth ulcer is a finding, not the name of a single disease. Occasional ulcers can arise for reasons unrelated to HFMD, so an isolated sore does not prove that a person is infectious. Equally, a persistent ulcer should not be written off indefinitely as the remains of a childhood virus. NHS advice is to have an ulcer checked by a dentist or doctor if it lasts longer than three weeks, is different from usual, or becomes increasingly painful, red or bleeds. That longer-term checkpoint is separate from urgent assessment when a person cannot swallow enough fluid. Our guide to mouth ulcer causes and when to seek care covers that broader situation. Do not transfer treatments for recurring non-infectious ulcers to a young child’s suspected HFMD without checking suitability with a clinician or pharmacist. [27]

Make drinking the first home-care priority

A sore mouth can make children avoid fluids even when they are thirsty. Offer small amounts frequently rather than waiting for them to finish a large cup. A familiar cup or straw may make drinking easier for a child who can use it safely; choose the approach they tolerate, without forcing liquid into the mouth. Oral rehydration solution can be helpful when intake is poor, with advice appropriate to the child’s age. It is not necessary to turn every sip into a test, but you do need to notice whether repeated offers actually lead to drinking. Children with significant underlying heart or kidney conditions may need an individual fluid plan rather than general advice. If a child remains unable to drink, cannot keep fluids down or shows worsening dehydration, seek care rather than repeatedly trying a different cup at home. Severe dehydration requires emergency treatment. [10]

Keep infant feeding age appropriate

For babies, continue offering their usual breast milk or correctly prepared formula rather than replacing their feeds with the drinks suggested for an older child. Nationwide Children’s Hospital includes continued milk or formula feeding in its infant HFMD advice. Ask a clinician or pharmacist about an appropriate oral rehydration product when needed, especially for a young baby. Do not dilute formula beyond its instructions to make it seem easier to drink. [32] In an older child, soft foods such as porridge, mashed potato or eggs may be easier to swallow than a crisp or scratchy meal. The aim is to make eating manageable while maintaining fluids, not to insist on a normal portion at every sitting. Use foods the child already eats safely, taking their allergies and swallowing abilities into account. A child who is accepting very little fluid needs assessment even if they manage a few mouthfuls of food. [31]

Choose soothing food without promising a cure

Cool drinks and soft food can make a painful mouth more comfortable. Acidic drinks, very hot food and salty or spicy meals may sting, so water and familiar mild foods are often simpler choices. Offer an alternative rather than arguing about a food that hurts. This is symptom relief, not a special HFMD diet: there is no need to buy a supplement, impose a restrictive detox plan or exclude whole food groups to clear the virus. Return towards the person’s usual varied diet as comfort improves. A pharmacist can advise whether any mouth product is suitable for the person’s age, rather than assuming that an adult gel or mouthwash is safe for a toddler. NHS guidance also notes that antibiotics do not cure HFMD. Do not use leftover antibiotics or seek an antibiotic simply because mouth sores look inflamed; a clinician must assess any separate concern about bacterial infection. [4]

Watch for dehydration, not just thirst

Reduced urination is an important warning that intake may be inadequate. In babies, compare wet nappies with their usual pattern. Other concerning signs include a dry mouth, few or no tears, sunken eyes, unusual drowsiness or irritability; a baby’s soft spot may look sunken. Adults may notice dark urine or dizziness, particularly on standing. Do not rely on thirst alone when a child is reluctant to drink or cannot describe how they feel. Seek urgent medical advice if drinking is poor and these signs are present. Cold or blotchy skin, difficulty breathing, confusion or difficulty waking can indicate a serious emergency, especially with dehydration, and require emergency help. A list of signs cannot accurately grade dehydration at home. If something feels substantially different from the person’s normal behaviour, describe it to a healthcare professional rather than waiting until every feature on a checklist appears. [9]

Use a simple observation record

The Sydney Children’s Hospitals Network highlights both mouth pain and reduced eating or drinking as part of HFMD. A short record can turn a vague impression of “not drinking much” into useful information for an assessment. Write down the time of the last wet nappy or trip to the toilet, the drinks actually taken and any vomiting. Note whether the child is interacting normally between periods of discomfort and whether the rash is changing. This is an organisational aid, not a score that decides whether care is needed. You do not need to measure every millilitre for an otherwise well child, and recording must never delay a call for help. It is especially helpful when caregivers swap during the day: the next adult can see what has already happened rather than repeating medicines or assuming someone else has offered fluids. Share the main changes clearly when speaking with a clinician. [24]

Use pain medicines for comfort, with a checked dose

Paracetamol, called acetaminophen in some countries, can help pain and discomfort when it is suitable for the child. The correct amount depends on the product, age and sometimes weight. Different liquid strengths mean that a volume copied from another family’s bottle can be wrong for yours. Read the exact label and use the supplied oral syringe or measuring device rather than a kitchen spoon. Check the active ingredients in any other medicine so the same drug is not given twice under different brand names. If you are unsure about the dose, ask a pharmacist before giving it. For a very young infant, obtain medical advice rather than treating a fever as an ordinary HFMD symptom. If more than the recommended amount has been given, seek urgent advice even if the child seems well. Keep the packaging available so the professional can identify the strength and amount. [11]

Ibuprofen is not suitable in every situation

Ibuprofen can also relieve pain for some children, but it should not be treated as an interchangeable answer for every age or illness. Age limits, strengths and dosing instructions vary between products and countries. In the United Kingdom, some children’s preparations can be used from three months and above five kilograms, while US Nationwide Children’s Hospital advises against giving it below six months. [31] Follow the local product label and professional advice, not a general internet dose. A child who is drinking poorly may be at risk of dehydration, which changes the safety decision. If symptoms continue despite appropriate pain relief, or you are considering repeated treatment for several days, contact a clinician or pharmacist. The goal is to support comfort and drinking, not to keep giving medicine indefinitely until every spot disappears. More frequent doses than recommended do not make the virus resolve faster and can cause harm. [12]

Prevent mix-ups between caregivers

NHS guidance advises against ibuprofen in a dehydrated child or a child with chickenpox, and recommends professional advice for children with asthma. These are reasons to check a medicine’s suitability rather than choosing solely by the presence of fever. Do not give aspirin to a child or teenager for a viral illness unless their clinician has specifically prescribed it. [7] Keep a shared written record of the medicine name, concentration, amount and time given. An adult coming home later should not have to guess whether a dose was already administered. Store medicines out of children’s reach and keep them in their original packaging. If a child spits out or vomits a dose, ask a pharmacist or clinician what to do rather than automatically repeating the full amount. That decision can depend on the medicine and circumstances. A clear, single plan is safer than several adults independently trying to improve comfort. [13]

Do not chase the thermometer reading

A child’s overall condition matters alongside the temperature. Use a digital thermometer according to its instructions, and tell a clinician how the temperature was measured. NHS advice recommends either a suitable paracetamol or ibuprofen product when a child is distressed or uncomfortable, not alternating them unless a health professional directs you. Keep checking the child, including during the night, without overwrapping them or using cold sponging to force the temperature down. A baby under three months with a temperature of 38°C or higher needs urgent medical assessment; a baby aged three to six months with 39°C or higher also needs urgent advice. These age-specific thresholds are not permission to ignore a younger baby’s unusual sleepiness, poor feeding or other concerning symptoms at a lower temperature. Explain any fever medicine already given when asking for help, because the current reading may not show the earlier fever. [14]

Be cautious with numbing gels and sprays

A product sold for mouth pain is not automatically appropriate for a child with HFMD. The US Food and Drug Administration warns that oral benzocaine products can cause a serious blood disorder, methemoglobinemia, and should not be used in children under two years. Older children and adults can also be affected, so this is not simply a matter of using a smaller amount. Ask a pharmacist or clinician about the exact product, age and intended use before putting a numbing preparation into a child’s mouth. Do not improvise a mixture of adult mouthwash, anaesthetic and other medicines based on an online recipe. Take particular care when a product is already in a household bathroom cabinet: its presence does not establish that it was prescribed for this child or this illness. If a medicine causes breathing difficulty or blue or grey colouring, obtain emergency help immediately and bring the product information. [15]

Leave blisters alone and watch for changes

Do not deliberately pop or squeeze HFMD blisters. Let them dry naturally and avoid touching the fluid. Comfortable clothing and gentle care are usually more useful than repeatedly applying new products to the rash. If spots become unusually large, ooze pus or look increasingly inflamed, have them checked rather than assuming that this is the expected next stage. The Royal Children’s Hospital advises hospital assessment when a child remains dehydrated and is not drinking despite appropriate pain relief, or looks very unwell with symptoms such as marked drowsiness, breathing trouble or seizures. A fever with a rash that does not fade when pressed also needs immediate emergency assessment, because it may indicate a different serious infection. Do not wait for a rash to spread before seeking help. Looking after the skin is a small part of care; the child’s breathing, responsiveness and ability to drink take priority. [6]

Know when to seek care again

Seek urgent assessment for a child who is getting worse, has persistent fever, abnormal jerking movements, rapid breathing, extreme drowsiness or irritability, difficulty walking, or difficulty swallowing fluids. Healthdirect advises that these changes can require urgent review even during an illness that usually settles by itself. A previous diagnosis of HFMD does not remove the need to reassess a worsening child. Describe the change in plain language: “She was talking and drinking this morning but is now difficult to wake” is more informative than “The virus seems worse.” Call the local emergency service for severe breathing difficulty, a seizure, collapse or inability to wake normally. Otherwise use the appropriate urgent-care route available where you live. Do not wait until the seven-to-ten-day recovery window has passed when a warning sign appears; that timeframe describes a typical uncomplicated course, not a safe waiting period for severe symptoms. [5]

Make the handwashing routine practical

Handwashing works best when it becomes part of ordinary transitions: after using the toilet or changing a nappy, after wiping a nose, and before preparing or eating food. Use soap and clean running water, lather all surfaces of the hands, scrub for at least twenty seconds, rinse and dry. Help a young child reach and use the sink safely rather than expecting a quick splash to do the job. Include fingertips, between fingers and the backs of hands, not just the palms. Keep soap and a clean drying option available where they are needed. A simple routine is more sustainable than repeatedly telling a child not to touch anything. Adults need to follow the same steps, especially when moving from personal care to preparing a snack. The purpose is to reduce opportunities for germs to move from hands to the mouth or shared objects, not to blame anyone for becoming ill. [16]

Soap, water and sanitiser are not identical

Alcohol does not effectively kill some HFMD viruses, including EV71, so soap and water should not be replaced with hand sanitiser. [21] CDC community guidance favours soap and water because washing removes a wider range of germs and chemicals, particularly when hands are visibly dirty or greasy. If soap and water are not available, an alcohol-based sanitiser containing at least sixty percent alcohol is the general fallback. Supervise children and keep the container away from their mouths. During HFMD care, make proper handwashing easy after toileting and nappy changes instead of relying only on a bottle beside the changing mat. Avoid overstating what any single product can guarantee: a label such as “antibacterial” is not proof that it prevents every viral infection. Follow the product directions and keep the wider routine of washing, careful handling of soiled items and cleaning shared surfaces. No product makes close contact with infectious secretions risk free. [30]

Treat nappy changes as a complete sequence

Prepare what you need before starting a nappy change, and keep the child safe throughout. Separate soiled clothing and used wipes from clean supplies and surfaces that are hard to clean. After putting on a fresh nappy, wash the child’s hands, place them in a safe supervised area and clean the changing surface as appropriate. Wash your own hands thoroughly afterwards. CDC’s home diaper-changing guidance includes both the child’s hands and the adult’s, a detail that is easy to overlook when concentrating on the nappy itself. Do not leave a baby unattended on a raised surface while fetching a cloth or washing at a distant sink. Organise the space so that safe supervision and hygiene can both happen. Continue careful toileting and changing routines after the child appears better rather than abandoning them as soon as the visible rash improves. These are useful household habits beyond this one infection. [18]

Clean shared surfaces without creating chemical hazards

Focus on objects people repeatedly touch, such as taps, door handles, changing surfaces and washable toys. Cleaning removes dirt and many germs; disinfecting is a separate step that may be appropriate when someone is ill. Clean first, then follow the disinfectant label, including the required wet contact time and whether a food-contact surface needs rinsing. Choose products suitable for the material rather than spraying everything with the strongest chemical available. Do not mix cleaning products, and keep them away from children. For clothing, towels and soft toys, follow the manufacturer’s washing instructions and dry items fully. You do not need to discard belongings simply because a child with HFMD touched them. A manageable cleaning routine is more useful than a one-time exhausting effort followed by no handwashing. Keep cleaning supplies out of reach while caring for a child who may pick up attractive bottles or imitate what an adult is doing. [17]

Reduce sharing while preserving normal care

Avoid sharing cups, eating utensils and personal items during illness. A child’s drink bottle should remain their own rather than circulating among siblings. Caregivers can still provide reassurance and practical help while limiting contact with saliva and blister fluid and washing afterwards. Avoid kissing around the mouth or sharing a spoon to taste a child’s food. The American Academy of Dermatology includes avoiding close contact with someone who has HFMD among prevention measures. In a household, think about the specific contacts you can change rather than expecting a small child to manage infection control alone. Put separate cups where family members can recognise them, and collect used tissues promptly. Explain the temporary arrangements without making the child feel dirty or at fault. Prevention reduces risk; it does not guarantee that everyone else will remain well, especially when exposure may already have occurred before the illness was recognised. [29]

School return depends on where you live

There is no single worldwide exclusion period for HFMD. In England, UK Health Security Agency guidance lists no routine exclusion requirement for HFMD itself; a child who is unwell still needs care at home. The practical question is therefore more specific than “Are there still spots?” Ask the setting about its current illness policy and any outbreak instructions, and consider whether the child can comfortably participate and receive the care they need. A school may need to know about the diagnosis so it can provide information to other families, but that does not make every household contact automatically excluded. Do not assume advice from another country applies to your school or nursery. When discussing return, identify the country or local authority behind the recommendation. This is especially important for families who move between countries or find several apparently contradictory answers in online searches. [19]

Understand why local advice can differ

New South Wales Health takes a more restrictive approach than England’s routine guidance: its HFMD fact sheet advises exclusion until blisters have dried, any rash has gone and fever has settled. It also advises avoiding group activities during that exclusion period. This is a local public health instruction, not a biological rule that applies everywhere. If you are in New South Wales, use that guidance and any advice provided for the child’s setting; elsewhere, check the relevant authority. When phoning the nursery, be precise about fever, the child’s ability to take part and the condition of blisters rather than asking for an arbitrary number of days. Do not send a child back solely because a medicine temporarily makes them look more comfortable. Also separate the return date from ongoing hygiene: careful handling of stool and handwashing remain sensible after the local attendance criteria have been met. [20]

Communicate with the setting during an outbreak

Tell the school or childcare provider about a diagnosed infection through its normal private reporting route. You do not need to circulate identifiable photographs or another family’s medical information in a group chat. UKHSA outbreak guidance emphasises communication, hygiene and risk assessment, with additional measures when there are several cases or more serious disease. If the setting issues new advice, ask whether it comes from the local health protection team and whether it changes the usual return criteria. Keep the message about your own child factual: when symptoms started, whether they are staying home and how to contact you. An outbreak response may change as more information becomes available. That is a reason to check current instructions, not to assume staff are inconsistent or that the longest exclusion period found online must be the safest one. Follow the clinician’s and local authority’s advice where a particular complication or outbreak creates different requirements. [28]

Adults and other household members

Adults can develop HFMD as well as children. Singapore’s HealthHub advises looking out for symptoms in other family members and avoiding shared personal belongings. An adult caring for an ill child should therefore not dismiss their own new mouth sores or rash solely because the condition is described as a childhood illness. Equally, exposure does not establish a diagnosis or justify taking another person’s medicine. If symptoms interfere with drinking, work or essential care of a baby, seek appropriate advice. Tell a healthcare or childcare workplace about relevant illness through its occupational-health or sickness-reporting process, because responsibilities around vulnerable people may differ from ordinary social activities. Make a backup plan for caregiving if the usual adult becomes too unwell. Practical help can include preparing suitable drinks, taking over cleaning or collecting medicines on professional advice, rather than arranging unnecessary close contact with additional visitors. [26]

Pregnancy: ask for individual advice, not automatic alarm

Exposure during pregnancy is understandably worrying, but it should not be interpreted as proof of harm to the baby. CDC guidance on non-polio enteroviruses notes that many adults have protection from earlier exposures and may have no symptoms or only mild illness. Infection shortly before delivery can pass to the newborn; newborn illness is usually mild, but rarely can be severe. If you are pregnant and develop symptoms or have a relevant exposure, contact your midwife or doctor, especially near your due date. Explain the timing, your symptoms and how close the contact was. This allows advice to reflect your pregnancy rather than a general statement on a webpage. Do not stop prescribed medicines, change birth plans or avoid necessary maternity appointments on your own. Instead, tell the maternity team before attending so it can advise on the appropriate arrangements and assess any symptoms that need attention. [23]

Newborns and weakened immunity need extra caution

Newborn babies and people with weakened immune systems deserve a lower threshold for professional advice. The broader group of non-polio enteroviruses can occasionally cause serious illness, and CDC notes that severe newborn infection, including sepsis, is rare but possible. This does not mean most childhood HFMD develops into a severe infection. It means that a new baby’s poor feeding, unusual sleepiness, breathing change or fever should not be casually attributed to a sibling’s mild rash. Seek prompt medical assessment and describe any household illness. If someone has an immune condition or takes medicines that suppress immunity, ask their usual clinical team how to respond to symptoms or close exposure. Do not change that person’s prescribed treatment without advice. In a household with a newborn, arrange caregiving so that handwashing and avoiding contact with saliva or blister fluid are realistic, while still ensuring everyone receives the care they need. [22]

Can someone have HFMD again?

Yes. Protection after an episode relates to the particular virus that caused it, while several viruses can cause the HFMD syndrome. Hong Kong’s Centre for Health Protection explicitly notes that later infection with a different virus can lead to another episode. A second illness therefore does not automatically mean that the first diagnosis was wrong or that the person has a weak immune system. It still needs to fit the current symptoms, and repeated unexplained mouth ulcers should be assessed on their own merits. Avoid promising that a child is now permanently protected, but do not treat another episode as inevitable either. Continue ordinary prevention habits and ask for medical advice if episodes are unusually severe, prolonged or diagnostically unclear. Keep a brief history of dates and diagnoses if illness recurs, so a clinician can judge the pattern from actual events rather than a general memory of being “always unwell.” [21]

Is there a vaccine?

CDC states that there is no vaccine available in the United States to protect against the viruses causing HFMD. Vaccine availability and eligibility are country-specific, so this should not be turned into a worldwide claim. Ask your local health service about current advice where you live. [1]

A practical plan for the next conversation with a clinician

Before calling, gather the information that will help the professional make a decision: the person’s age, when the illness began, the highest measured temperature, the last meaningful drink and the last urine or wet nappy. Have medicine bottles beside you so you can read the name, strength and dose rather than relying on brand recognition. Describe any change in breathing, movement or alertness first. Then explain whether a clinician has already assessed the illness and what has changed since that assessment. Ask what improvement to expect, which symptoms should trigger another call and how to obtain help outside normal opening hours. If attendance is the issue, ask separately about the local school or childcare policy. Separating immediate health needs, comfort care and return arrangements makes the conversation more useful than asking only how long HFMD lasts. Write down the agreed plan and share it with the next caregiver.