Hand Foot & Mouth Disease: Symptoms and treatment

August 8, 2025
Photo of child's torso and arms covered in rash and blisters.

Hand Foot & Mouth Disease is going around, mostly affecting kids under age 7. It’s a common, contagious illness that tends to rise in the summer and early fall.

The virus spreads person-to-person through a cough or sneeze, runny nose, or fecal matter: An important reminder to wash hands well after using the toilet.

It takes 3-5 days for symptoms to appear. Watch for:

  • sore throat or refusing to eat or drink
  • fever
  • runny nose
  • sores in and around the mouth; they can be painful
  • red bumps or blisters on the palms of hands, soles of feet and in diaper/genital area; rash may extend along legs or arms

NH+C pediatrician Amy Kraushaar, DO recommends using acetaminophen or ibuprofen to manage fever and/or pain.

“One complication of HFMD is dehydration, so it’s important to keep up on fluids,” Dr. Kraushaar says. “Try offering colder foods and drinks” that can soothe mouth blisters while keeping hydration up.

The disease can also cause nail shedding or peeling  about 3-8 weeks after the infection. “Many parents get concerned about this,” Dr. Kraushaar says. “It’s harmless, and the nails usually grow back on their own.”

See your provider for:

  • any concerns about dehydration
  • lethargy
  • bad headaches
  • changes in behavior

Kids typically feel better within 7-10 days. They can still be contagious for weeks afterwards.

To prevent the spread of HFMD:

  • Make sure kids wash their hands well after using the toilet (grown-ups, too)
  • Wash your hands after changing a diaper
  • Clean and sanitize toys
  • Don’t share cups or utensils
  • Disinfect frequently touched surfaces

Learn more from the American Academy of Pediatrics.

Pediatric appointments:

Farmington Clinic: (651)-460-2300

Lakeville Clinic: (952)-469-0500

Northfield Clinic: (507)-646-1494