There’s no antiviral medication that cures hand, foot, and mouth disease (HFMD), so getting rid of it means managing your symptoms while the virus runs its course. Nearly all people recover in 7 to 10 days with minimal or no medical treatment. The good news: there’s a lot you can do at home to make that week far more bearable.
Why Adults Get It and What to Expect
HFMD is often thought of as a childhood illness, but adults absolutely catch it, frequently from their own kids. Adults tend to experience the same progression: a day or two of fever, sore throat, and general malaise, followed by painful sores inside the mouth and a rash or blisters on the hands, feet, and sometimes the buttocks. In some adults, the mouth sores are the worst part, making eating and drinking genuinely difficult. Others barely notice the skin rash but feel wiped out by fatigue and body aches.
The illness typically peaks around days 3 to 5, then gradually improves. By day 7 to 10, most symptoms are gone. The blisters dry out and fade on their own without scarring. One unusual aftereffect that surprises people: weeks after recovery, your fingernails or toenails may peel or even shed completely. This looks alarming but is harmless, and the nails grow back normally.
Managing Fever and Pain
Standard doses of acetaminophen or ibuprofen are the first line for controlling fever and easing the overall achiness. Ibuprofen has the added benefit of reducing inflammation, which can help with swollen, tender mouth sores. Alternate between the two if one alone isn’t enough, spacing them according to the timing on the package.
If your throat and mouth pain are severe enough that you’re avoiding food and water, ask your pharmacist or doctor about a medicated mouthwash. Prescription “magic mouthwash” formulas often contain a numbing agent like lidocaine alongside an antihistamine and an antacid that coats the inside of your mouth. Swishing this before meals can make eating possible again.
Soothing Mouth Sores
The mouth sores are often the most disruptive symptom for adults. Cold foods help: ice chips, popsicles, smoothies, and chilled yogurt all numb the area slightly while keeping you hydrated. Avoid anything acidic (citrus juice, tomato sauce), salty, or spicy, as these will sting open sores and make meals miserable.
Room-temperature or cool water is easier to drink than hot beverages. If plain water hurts, try cold milk or a bland protein shake. The goal is to keep drinking steadily throughout the day. Dehydration is the most common complication of HFMD in adults, and it happens simply because swallowing hurts so much that people stop drinking enough.
Treating the Skin Rash and Blisters
The rash on your hands and feet can range from flat red spots to raised, fluid-filled blisters. Calamine lotion applied directly to the rash can soothe itching and discomfort, but it won’t speed things up. The rash resolves on its own as your immune system clears the virus.
A few things to avoid: don’t pop the blisters, as the fluid inside is highly contagious and breaking the skin invites bacterial infection. Stay away from exfoliating products, scrubs, or harsh soaps on affected areas. These irritate the skin and can slow healing. Stick with gentle, fragrance-free soap and pat dry rather than rubbing. If blisters on your feet make walking painful, soft bandages or padded socks can reduce friction.
How Long You’re Contagious
You’re most contagious during the first week of illness, but the virus can still spread for days or even weeks after your symptoms disappear. The virus lives in saliva, nasal mucus, blister fluid, and stool. That means thorough handwashing, especially after using the bathroom, is critical even after you feel better.
For returning to work, the general guidance from occupational health protocols is fairly specific. You should be fever-free for at least 24 hours without medication, your blisters should no longer contain fluid, and your other symptoms should be clearly improving. Some guidelines recommend practicing workplace self-isolation for a full 10 days after symptom onset regardless of how you feel, which is worth discussing with your employer if your job involves close contact with others.
Speeding Up Recovery
You can’t shorten the viral timeline, but you can avoid dragging it out. Rest is genuinely important here. Your immune system does the heavy lifting, and pushing through a full workload while sick tends to prolong fatigue and malaise. Sleep as much as your body asks for, especially in the first few days.
Stay well-hydrated. This supports your immune response and helps your body regulate the fever. Eat what you can tolerate, prioritizing soft, bland, protein-rich foods like scrambled eggs, oatmeal, mashed potatoes, or smoothies with protein powder. If you can only manage liquids for a day or two, that’s fine as long as you’re drinking consistently.
Keep your environment clean. Wipe down shared surfaces like doorknobs, phones, and bathroom fixtures with a standard disinfectant. Wash towels and bedding in hot water. If you live with others, use a separate hand towel and avoid sharing cups or utensils. The virus spreads easily in households, and these precautions reduce the chance of passing it to a partner or roommate.
When Recovery Takes Longer Than Expected
Most adults are functionally back to normal within 10 days, but some cases hit harder. If you develop a high fever that doesn’t respond to over-the-counter medication, notice signs of dehydration (dark urine, dizziness, no urination for 8 or more hours), or experience a stiff neck and severe headache, those warrant medical attention. Rarely, the viruses that cause HFMD can trigger viral meningitis, which is serious but treatable.
The nail shedding mentioned earlier, called onychomadesis, typically shows up 3 to 6 weeks after the illness and affects one or more nails. It looks dramatic but doesn’t hurt and doesn’t need treatment. New nails grow in underneath and fully replace the old ones over a few months.