Hand, Foot and Mouth Disease: Symptoms, Causes, and Care

If your young child has come home from school or daycare with a fever, sore mouth, and small blisters on their hands and feet, hand, foot and mouth disease (HFMD) may be the cause. It sounds alarming, but it is one of the most common childhood illnesses and, in most cases, resolves on its own within a week or two.

Understanding what to look for, how it spreads, and how to keep your child comfortable can help you manage this condition with confidence.

What Is Hand, Foot and Mouth Disease (HFMD)?

Hand, foot and mouth disease is a contagious viral illness that primarily affects infants and young children, though older children and adults can get it too. It is characterised by a blister-like rash on the hands and feet, painful sores inside the mouth, and an initial flu-like phase with fever.

HFMD is not the same as foot-and-mouth disease, which affects hoofed animals like cows and sheep. The two are entirely different illnesses caused by different viruses, and they do not cross between humans and animals.

Despite its uncomfortable symptoms, HFMD is typically mild. Most children recover fully within seven to ten days with supportive care at home.

What Causes Hand, Foot and Mouth Disease?

HFMD is caused by viruses belonging to the enterovirus family. The most common culprit is coxsackievirus A16, though other enteroviruses, including enterovirus 71 (EV-A71), can also be responsible.

Key points about the cause:

• Coxsackievirus A16 is the most frequent cause of coxsackievirus infection leading to HFMD in children worldwide
• Enterovirus 71 has been associated with more severe outbreaks, particularly in parts of Asia
• Because several different viruses can cause the condition, it is possible for a child to get HFMD more than once
• The virus lives in the digestive tract, including the mouth, oesophagus, stomach, and intestines, which explains why it spreads so easily

How Hand, Foot and Mouth Disease Spreads

HFMD is highly contagious, especially in the first few days before the rash even appears. It spreads through:

• Respiratory droplets released when an infected person coughs or sneezes
• Direct contact with saliva, blister fluid, or nasal discharge from an infected child
• Faecal contamination, particularly during nappy changes, if hands are not washed thoroughly afterwards
• Sharing items such as toys, cups, utensils, towels, or clothing
• Touching contaminated surfaces such as doorknobs or countertops and then touching the eyes, nose, or mouth
• Close physical contact like hugging or kissing someone who is infected

A child is most contagious in the first few days of illness, but the virus can remain in their stools for several weeks after symptoms have resolved. This is why hygiene remains important even after recovery.

Common Symptoms of Hand, Foot and Mouth Disease

Symptoms typically appear three to seven days after exposure to the virus. Recognising this viral rash in children early can help you respond quickly and take steps to prevent further spread.

Watch for:

• Fever, often the first sign, which may be mild to moderate
• Sore throat and general discomfort
• Loss of appetite and increased drooling due to mouth pain
• Painful mouth sores that begin as red spots and develop into blisters, appearing on the tongue, gums, inner cheeks, and back of the throat
• A rash or blisters on the palms of the hands and soles of the feet that are usually not itchy
• Rash on other areas including the buttocks, legs, and genital region
• Swollen lymph nodes in the neck
• Irritability, particularly in infants and toddlers who cannot express their discomfort

Some children, especially those under two years of age, may take slightly longer than ten days to recover.

Stages of Hand, Foot and Mouth Disease

HFMD typically progresses in two recognisable stages:

Stage 1: Initial Flu-Like Symptoms (Days 1 to 2)

The illness usually begins with symptoms that resemble a mild viral fever, including:

• Fever, typically between 38 and 39 degrees Celsius
• Sore throat
• Runny nose
• Reduced appetite
• Fatigue and general irritability

At this stage, the child may not yet have any visible rash or blisters. However, they are already contagious.

Stage 2: Rash and Mouth Sores (Days 3 to 7)

As the initial fever eases, the characteristic signs of HFMD emerge:

• Small red spots or bumps appear on the hands and feet, progressing to fluid-filled blisters
• Painful ulcers or blisters develop inside the mouth, making eating and drinking uncomfortable
• The rash may also appear on the knees, elbows, buttocks, and genital area

By days seven to ten, blisters begin to dry out and symptoms gradually resolve. In some children, minor nail changes such as peeling or temporary nail loss may occur weeks after recovery. The nails grow back normally.

Who Is at Risk?

While anyone can get HFMD, certain groups are more susceptible:

• Children under 5 years old are most commonly and severely affected
• Children attending daycare or school are at higher risk due to close contact with other children
• Older children and adults can contract HFMD, though they often experience milder symptoms or none at all
• Pregnant women who are exposed to the virus should inform their doctor, though complications are rare
• People with weakened immune systems may be more vulnerable to severe illness

Because the virus has multiple strains, having HFMD once does not guarantee protection against future infections.

Diagnosis of HFMD

In most cases, a doctor can diagnose HFMD by examining the characteristic rash and mouth sores, alongside a review of the child's symptoms and recent exposure history. No tests are usually needed.

In less typical presentations, or if a complication is suspected, a doctor may take swabs from the throat, blisters, or stool to send for laboratory analysis. If your child has been exposed to the virus, inform the clinic before visiting so appropriate precautions can be taken to protect other patients.

Treatment and Home Care for HFMD

There is no specific antiviral medication for HFMD, and antibiotics will not help as this is a viral illness. The focus of care is on keeping your child comfortable, managing symptoms, and ensuring they stay well hydrated.

Managing Fever and Pain

• Paracetamol or ibuprofen, given at the correct dose for your child's weight and age, can help reduce fever and ease the pain of mouth sores
• Do not give aspirin to children, as it carries the risk of a rare but serious condition called Reye's syndrome
• Topical pain-relief gels or oral rinses designed for children may help soothe mouth sores, but always consult your doctor before using any product, especially for infants

Keeping Your Child Comfortable

• Offer cool fluids frequently to soothe the mouth and maintain hydration
• Cold foods like ice lollies and chilled yoghurt can provide relief for mouth sores
• Encourage rest and keep your child at home until they are fever-free and the blisters have dried up
• For older children, gargling with a mild saltwater solution may ease throat discomfort

Skincare

• The rash on hands and feet does not usually require any treatment
• Keep the skin clean and dry; blisters will resolve on their own

Foods and Fluids to Give During HFMD

Mouth sores can make eating and drinking painful, but staying hydrated is essential. Here is what to offer and what to avoid:

Encourage:

• Cool or room-temperature water, sipped frequently
• Cold milk or oral rehydration solutions (helpful for younger children)
• Ice lollies and ice chips, which provide relief and hydration at the same time
• Soft, smooth foods such as yoghurt, mashed potato, porridge, and smoothies
• Chilled or lukewarm soups and broths

Avoid:

• Hot or warm drinks and foods, which can intensify mouth pain
• Spicy foods that irritate sores
• Acidic foods and drinks such as citrus fruits, tomatoes, and fruit juices, as these aggravate the sores
• Hard, crunchy, or salty foods that are difficult to chew or cause discomfort

If your child is refusing fluids entirely, contact your doctor promptly.

Prevention Tips to Reduce Spread

Because HFMD spreads so easily, hygiene is your strongest defence:

• Wash hands thoroughly with soap and water for at least 20 seconds, especially after changing nappies, before meals, and after any contact with a sick child
• Disinfect frequently touched surfaces such as toys, doorknobs, light switches, and countertops
• Do not share cups, utensils, towels, or clothing between children
• Cover coughs and sneezes with the elbow, not the hands
• Keep infected children at home until they are fever-free and blisters have fully dried
• Wash soiled clothing and bedding promptly
• Avoid close contact such as kissing or hugging between an infected child and healthy family members where possible

There is currently no widely available vaccine for HFMD in most countries, though research in this area continues.

Possible Complications of HFMD

Complications from HFMD are uncommon, and the majority of children recover without any lasting effects. However, in rare cases, the following may occur:

• Dehydration: The most common complication, caused by painful sores making it difficult to drink. Prompt attention to fluid intake is important.
• Nail changes: Some children experience peeling or temporary loss of fingernails or toenails a few weeks after infection. This is harmless and the nails grow back normally.
• Viral meningitis: A very small number of children may develop inflammation of the membranes surrounding the brain and spinal cord. Signs include severe headache, stiff neck, and sensitivity to light.
• Encephalitis: Rarely, the virus can cause inflammation of the brain. This is more commonly associated with enterovirus 71 infections and requires urgent medical care.

If your child appears unusually unwell beyond what you would expect from a typical HFMD illness, seek medical attention without delay.

When to See a Doctor

Most children with HFMD do not need to visit a doctor and can be managed safely at home. However, contact your healthcare provider if your child:

• Refuses to drink fluids or shows signs of dehydration such as very little or no urination, dry mouth, sunken eyes, or unusual drowsiness
• Has a fever that persists for more than three days
• Does not show signs of improvement after ten days
• Seems unusually drowsy, limp, or difficult to rouse
• Develops a very stiff neck, severe headache, or is extremely sensitive to light
• Has a weakened immune system or a pre-existing medical condition
• Is a newborn or very young infant

If your child has been exposed to the virus and you are pregnant, inform your doctor so they can advise you accordingly.

Key Takeaways

• HFMD is a common, contagious viral illness primarily affecting children under five
• It is caused by enteroviruses, most commonly coxsackievirus A16
• Symptoms include fever, painful mouth sores, and a blister-like rash on the hands, feet, and other areas
• The illness typically resolves within seven to ten days with supportive home care
• There is no specific medication; treatment focuses on managing fever, relieving pain, and maintaining hydration
• Good hygiene, particularly handwashing, is the most effective way to prevent spread
• Complications are rare, but dehydration is the most common concern to watch for
• See a doctor if your child refuses fluids, the fever persists beyond three days, or symptoms worsen

FAQs About Hand, Foot and Mouth Disease

What Are the First Symptoms of Hand, Foot and Mouth Disease?

The first symptoms of HFMD usually resemble a mild viral illness. Your child may develop a low to moderate fever, sore throat, runny nose, and reduced appetite. They may appear more irritable or tired than usual. These initial symptoms typically appear one to two days before the characteristic mouth sores and rash emerge, which is also when the child is most contagious.

How Long Does HFMD Last?

Most cases of HFMD resolve within seven to ten days. Younger children, particularly those under two years of age, may take a little longer. The mouth sores are often the most uncomfortable part of the illness and usually heal within the first week. Nail changes, if they occur, appear a few weeks after recovery and resolve on their own over time.

Is Hand, Foot and Mouth Disease Contagious?

Yes, HFMD is highly contagious. A child is most infectious during the first few days of illness, often before the rash even appears. The virus continues to spread through blister fluid and saliva until the blisters dry up, which takes around ten days. Importantly, the virus can remain in a child's stool for several weeks after recovery, making consistent handwashing essential throughout this period.

Can Adults Get Hand, Foot and Mouth Disease?

Yes, adults can get HFMD, though it is far less common. Many adults who are exposed to the virus do not develop symptoms because their immune systems respond more effectively. When adults do develop symptoms, they are typically the same as those in children. Pregnant women who are exposed should inform their doctor, as a precaution, even though complications are rare.

What Is the Best Treatment for HFMD?

There is no specific cure for HFMD. Treatment focuses on relieving symptoms and ensuring your child stays hydrated and comfortable. Paracetamol or ibuprofen can manage fever and pain. Cool fluids, ice lollies, and soft foods help soothe mouth sores and maintain hydration. Rest is important. Your doctor may recommend topical mouth gels for older children to ease soreness. Symptoms usually resolve on their own within ten days.

What Foods Should Be Avoided During HFMD?

During HFMD, avoid hot, spicy, acidic, or hard foods that can worsen mouth sore pain. Citrus fruits, tomatoes, fruit juices, crunchy snacks, and salty foods should all be avoided. Warm drinks should also be held back, as heat increases discomfort. Stick to cool, soft, smooth foods and cold fluids to help your child eat and drink more comfortably.

How Can I Prevent Hand, Foot and Mouth Disease?

Good hygiene is the most effective prevention. Wash hands thoroughly and frequently, especially after nappy changes, before meals, and after contact with sick children. Disinfect shared surfaces and toys regularly. Do not share cups, utensils, or towels. Keep infected children at home until they are well enough to return. There is no widely available vaccine for HFMD in most countries at this time.

Is HFMD Serious?

In the vast majority of cases, HFMD is a mild illness that resolves without any lasting effects. It is uncomfortable, particularly because of the mouth sores, but it is rarely dangerous. The main concern is keeping your child hydrated when eating and drinking are painful. Serious complications such as viral fever symptoms progressing to meningitis or encephalitis are very rare but do require prompt medical attention when they occur.

Can HFMD Cause Complications?

Complications from HFMD are uncommon. The most frequent issue is dehydration caused by difficulty drinking due to mouth pain. Less commonly, temporary nail loss may occur after recovery. In rare cases, the virus can affect the nervous system, causing viral meningitis or encephalitis. These serious complications are more associated with enterovirus 71 infections. Seek medical help immediately if your child develops a stiff neck, severe headache, extreme drowsiness, or difficulty moving.

Caring for Your Child's Health, at Every Stage

Watching your child go through HFMD can be worrying, but knowing what to expect makes it easier to manage. With the right care at home, most children bounce back quickly and fully.

Keeping a close eye on your child's overall health is part of being a proactive parent. While HFMD resolves on its own, recurring illnesses, slow recovery, or unusual symptoms can sometimes point to an underlying concern worth investigating further.

Metropolis Healthcare supports families at every step of their health journey. With over 4,000 tests available, NABL and CAP-accredited laboratories, and a strong home sample collection network spanning 10,000 touchpoints across India, getting a health check done is simple and stress-free. Whether you are monitoring your child's wellbeing or looking after your own, you can book with ease through the Metropolis website, app, WhatsApp, or phone. Reliable results, delivered quickly, when you need them most.

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• Xing W, Liao Q, Viboud C, et al. Hand, foot, and mouth disease in China, 2008-12: an epidemiological study. Lancet Infect Dis. 2014;14(4):308-318.
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