how long does hand foot and mouth last

Hand, foot and mouth disease (HFMD) usually lasts about 7–10 days from the time symptoms start, with the worst days often in the first 3–5 days.

How long it lasts

• Most kids and adults start to feel better within 3–5 days as the fever settles and the energy slowly returns.

• Mouth sores, rash and blisters typically improve and dry up by about day 7–10 for most people.

• In some young children (especially under age 2), the virus can take a bit longer to fully clear, so they may seem “almost well” but still a bit off for more than a week.

Infectious period

• People are most contagious in the first week of illness, when fever, sore throat and new blisters are active.

• Viral shedding in stool can continue for weeks, which means good handwashing after diaper changes or bathroom use is important even after they look better.

Very rough timeline (example)

• Days 1–2: Fever, sore throat, child or adult feels generally unwell.

• Days 2–4: Painful mouth ulcers, rash and small blisters on hands, feet, maybe buttocks appear.

• Days 4–7: Fever usually gone; rash and blisters start to dry, but can still be uncomfortable.

• Days 7–10: Most symptoms have cleared; some peeling of skin on hands/feet can linger a bit longer but is usually harmless.

When to go back to school or work

• Many guidelines say to stay home for about 7–10 days and return once there’s no fever for 24 hours and blisters are healing or crusted over, following local or school rules.

When to call a doctor urgently

Contact a doctor or urgent care if:

• Symptoms are not improving at all or are still significant after about 10 days.

• Your child has trouble drinking or peeing much less (signs of dehydration).
• There is neck stiffness, confusion, breathing trouble, unusual sleepiness, or very high or persistent fever (possible rare complications).

Bottom line: HFMD is usually mild but miserable, and for most people it runs its course in about 7–10 days, with the first week being the hardest.

Information gathered from public forums or data available on the internet and portrayed here.