Baby Hand, Foot and Mouth: Stages & Recovery

Mother offering a plain cup to her awake toddler at home — Check drinking as well as the rash.

Hand, foot and mouth disease often starts with fever, sore throat or reduced appetite, followed a few days later by mouth sores and a hand-and-foot rash; most children recover in 7–10 days.

SUMMARY

Get urgent medical advice if your baby is drinking poorly and you are worried about dehydration, or if they have fewer wet diapers than usual.
Keep your child home while unwell and confirm the return requirements with their childcare provider.
Continue careful handwashing after recovery because the virus can still spread after symptoms end.

How symptoms usually unfold

HFMD is a viral infection most common in infants and children under 5, though adults can catch it too.

Early illness often appears 3–5 days after catching the virus.

Usual phase	What you may notice
At the start	Early symptoms can include fever, sore throat and eating or drinking less.
A few days later	A few days later, painful mouth sores and spots on the hands and feet may appear.

Rash can also appear on the buttocks, legs and arms.

Some children have no fever or only a mild one, and the rash may be sparse.

A clinician usually diagnoses HFMD from the rash, age and other symptoms; tests are sometimes needed.

Father gently looking at the palm of a toddler seated on his lap — The diagnosis depends on more than the appearance of one spot.

When will my baby be well again?

Most children get better within 7–10 days with little or no medical treatment.

Contact a clinician if symptoms are not improving after 10 days or fever lasts longer than 3 days.

Contagious period and time at home

People are usually most contagious during the first week of illness, but can pass the virus on for days or weeks after symptoms resolve, even without symptoms.

Spread can start a few days before symptoms.

The virus can spread through saliva, respiratory droplets, blister fluid, stool and contaminated objects.

Symptom recovery does not mark an exact end to infectiousness.

Returning to childcare

These regional recommendations do not share a single fixed isolation countdown.

South Korea

For South Korea, public guidance advises avoiding group childcare until the child has fully recovered.

United States

In the United States, CDC guidance allows attendance when there is no fever, the child feels well enough to participate and mouth sores do not cause uncontrolled drooling; local health authorities may require staying home during an outbreak.

Japan

In Japan, return is possible when the child’s general condition is stable, there is no fever and mouth pain no longer interferes with their usual meals.

Ask the childcare provider and your clinician which local return requirements apply to your child.

Parent calling beside a nursery backpack while another caregiver holds the toddler — Agree the return plan with the childcare provider before the next drop-off.

Comfort and fluids at home

Painful mouth sores can make swallowing hurt, reduce drinking and cause dehydration.

Continue breast milk or usual-strength formula; smaller, more frequent feeds may be easier.

Do not dilute formula.

For a child already taking solids, try cool fluids and soft foods such as plain yogurt, avoiding acidic drinks and hot, salty or spicy foods.

Plain yogurt, a spoon and a small cup on a dining table — Cool, soft foods may be more comfortable for a sore mouth.

Ask a pharmacist or clinician which pain medicine or mouth treatment is suitable for your child’s age; do not give aspirin to children.

Antibiotics do not cure HFMD because it is viral.

Reduce spread around the family

Wash hands with soap and water for at least 20 seconds, especially after diaper changes and toilet use.

Caregiver washing soapy hands under running water — Handwashing still matters during diaper care after symptoms improve.

Clean and disinfect frequently touched surfaces and shared toys.

Avoid sharing cups, cutlery and towels.

Keep blisters clean and avoid touching them.

When to seek care

Seek prompt medical assessment for suspected HFMD in a baby under 6 months or a child with a weakened immune system.

A baby under 3 months with a temperature of 38°C or higher needs urgent medical advice.

Fewer wet diapers than usual, few or no tears when crying, or unusual drowsiness can signal dehydration and need urgent medical advice.

Parent holding an awake baby while speaking to a pediatric clinician — A baby who cannot drink well and may be dehydrated needs medical assessment.

Call your local emergency number if your child is hard to wake, has difficulty breathing, a stiff neck, a first seizure or a rash that does not fade under pressure.