Hand, foot, and mouth disease has no cure or antiviral treatment. It’s a viral illness that runs its course in 7 to 10 days, and the entire goal of treatment is managing symptoms, especially pain from mouth sores, fever, and the risk of dehydration. Most cases are mild enough to handle at home with over-the-counter remedies and a few simple comfort strategies.
Why There’s No Medication for It
Hand, foot, and mouth disease is caused by a group of viruses called enteroviruses, most commonly coxsackievirus A16. Antibiotics don’t work against viruses, and no antiviral drug targets these particular ones. Your child’s immune system clears the infection on its own, typically within a week to 10 days. Treatment is entirely supportive: reduce pain, control fever, and keep your child hydrated while the virus passes.
Managing Pain and Fever
The mouth sores are usually the worst part. They can make eating and drinking painful enough that children refuse both, which is why staying ahead of discomfort matters. Over-the-counter pain relievers pull double duty here, easing both the sore throat and any fever.
Acetaminophen (Tylenol) can be given every 4 to 6 hours as needed, up to 5 doses per day. Ibuprofen (Advil, Motrin) can be given every 6 to 8 hours, up to 4 doses per day. Both are dosed by your child’s weight, not age, so check the packaging carefully. Ibuprofen should not be given to babies under 6 months old. Never give aspirin to children, as it carries a risk of a rare but serious condition called Reye’s syndrome.
If your child is old enough, a numbing mouth spray or oral gel containing benzocaine can provide short-term relief from the sores. For younger children, cold foods and drinks are a safer alternative for mouth pain.
Preventing Dehydration
Dehydration is the most common complication of hand, foot, and mouth disease, and it happens because children stop drinking when their mouth hurts. Small, frequent sips work better than asking a child to drink a full cup. Cold water, ice chips, and popsicles are often the easiest things to get down. Cold milk and smoothies can also soothe the mouth while adding calories.
Avoid anything acidic or salty. Orange juice, lemonade, tomato-based foods, and salty snacks will sting the open sores and make your child less willing to eat or drink. Soft, bland foods like yogurt, mashed potatoes, applesauce, and lukewarm soup are the safest choices. If your child won’t eat solid food for a few days, that’s less concerning than not drinking. Focus on fluids first.
Signs of dehydration to watch for include fewer wet diapers (or less frequent urination in older children), dry lips and mouth, no tears when crying, and unusual sleepiness or irritability. If you notice these, contact your child’s doctor.
Caring for the Skin Blisters
The blisters on hands, feet, and sometimes the buttocks or legs are generally less painful than the mouth sores, though they can be uncomfortable. Keep the skin clean with gentle soap and water. You don’t need to bandage the blisters unless they’re in a spot that gets rubbed by shoes or clothing. Let them dry and heal on their own. Popping them isn’t helpful and increases the risk of a secondary skin infection.
If the blisters seem unusually red, swollen, or warm, or if they start oozing pus rather than clear fluid, that could signal a bacterial infection on top of the viral rash. That’s one of the few situations where a doctor visit is warranted.
Reducing Spread at Home
The virus spreads through saliva, blister fluid, nasal secretions, and stool. During the first week of illness, your child is at peak contagiousness. A few habits make a real difference in protecting other family members:
- Handwashing: Wash hands thoroughly after diaper changes, after wiping noses, and before preparing food. This is the single most effective measure.
- Separate drinking cups and utensils: Don’t share cups, bottles, or silverware with a sick child during the illness.
- Surface cleaning: Wipe down frequently touched surfaces like doorknobs, toys, and changing tables with a disinfectant. Enteroviruses can survive on hard surfaces for hours.
- Avoid close contact: Kissing, hugging, and sharing a bed with the sick child all increase transmission risk to siblings and parents. Adults can catch this too, and it tends to be more uncomfortable than people expect.
Even after symptoms resolve, the virus can shed in stool for weeks. Continued hand hygiene after diaper changes or bathroom use is important during this period.
When Your Child Can Go Back to School
According to CDC guidelines, children with hand, foot, and mouth disease can return to daycare or school as long as they meet three conditions: no fever, feeling well enough to participate in class activities, and no uncontrolled drooling from mouth sores. You don’t necessarily need to wait until every blister has disappeared. Some local health departments may have stricter rules during an active outbreak, so check with your child’s school if you’re unsure.
When Adults Get It
Adults can and do catch hand, foot, and mouth disease, often from their own children. The treatment approach is identical: over-the-counter pain relievers, cold fluids, soft foods, and time. Adults sometimes experience more intense skin symptoms, including peeling or shedding of fingernails and toenails weeks after the illness resolves. This looks alarming but is harmless. The nails grow back normally.
The biggest practical concern for adults is the same as for children: the mouth sores can be painful enough to interfere with eating and drinking. Warm salt water rinses (half a teaspoon of salt in a cup of warm water) can provide temporary relief. Swish and spit several times a day, especially after meals.