I caught hand, foot and mouth disease fr
For reference only. Not medical advice.
Question
I caught hand, foot and mouth disease from my kid. How long does it last in adults? Real household: caregiver juggling school week and one elder or sibling nearby. Schedule: Thu; this week. Kitchen/home right now: cold drinks and rest. Already tried: going to work while blisters are fresh. Please answer as a practical family-care guide: what to do next tonight/today, what to avoid, and a clear decision tree. Constraints: respect «No diagnosis, no medication changes»; no dosing kids/pets/elders yourself; no mystery powders or buying prescription meds online; keep steps screenshot-friendly under ~25 minutes where cooking/care applies. Structure your help as (1) what I already tried vs better alternatives, (2) constraints/avoid list, (3) red flags—when to stop DIY and get clinical/urgent help. Keep the voice concrete and kind for a tired caregiver; stay inside kitchen/home-care/communication levers only. Name what success looks like in 24 hours without promising cures. Avoid brand shopping lists; focus on routines, food already at home, and communication scripts caregivers can screenshot.
Answer
Hand, foot and mouth disease (HFMD) in an adult — tonight, work, and the week ahead
Tonight: keep fluids and soft food going in, rest, leave the blisters alone, and stay off work and school while you still have a temperature or fresh blisters. In adults, hand, foot and mouth disease is usually mild and clears on its own — the NHS says it typically gets better within 7 to 10 days — so tonight is about comfort, fluids and not passing it on, not about a cure. If anything in the red-flag section at the end is happening now, skip straight there.
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Part 1 — What may be going on now, and the better version tonight
| If you've been… | The better version tonight |
|---|---|
| Waiting for it to pass with no plan | Put fluids on a schedule instead: a cool glass every couple of hours, small sips rather than big gulps |
| Popping blisters because they itch or look messy | Leave them intact. Cover with a loose, clean plaster if they rub against your shoes. Popping them slows healing and increases the chance of a secondary infection |
| Putting alcohol, peroxide or strong antiseptic on the skin | Soap and water, then pat dry. Harsh products irritate the skin and delay healing |
| Reaching for anything in the medicine cupboard | Use only what you already use for pain or fever, exactly as your own label says — the NHS notes paracetamol or ibuprofen can ease a sore mouth or throat, and a pharmacist can suggest a mouth-ulcer gel or mouthwash that suits you and your child |
| Spraying and wiping everything down | Wash hands with soap and water often (the CDC says at least 20 seconds), clean shared surfaces and shared items, and don't share cups, cutlery or towels. That does more than heavy disinfecting |
| Going to work because you look fine | You can still pass it on: HFMD spreads through blister fluid, cough droplets and surfaces, and you are most likely to spread it in the first five days after symptoms start |
Tonight, step by step (about 20–25 minutes in total)
- Fluids (5 min). Cool water, milk, cooled broth, or an oral rehydration sachet if you have one. Skip acidic drinks such as fruit juice — they sting the mouth ulcers. Sip steadily through the evening rather than in bursts.
- Food already in your kitchen (5 min). Yoghurt, porridge, cooled soup, scrambled eggs, mashed potato, banana, custard, ice cream, rice, pasta. Skip hot, salty, spicy, sour and crunchy food.
- Mouth (2 min). Cool water or ice chips, a soft toothbrush, and a rinse-and-spit with cool water after meals. Ask a pharmacist about pain relief and ulcer gels — especially anything for your child, since what suits an adult is not automatically right for a child.
- Hands and feet (5 min). Wash with soap and water. Keep blisters clean and as dry as you can, don't pop or peel them, and don't scrub. Wear loose socks and open shoes if your feet hurt. Wash your hands after touching blisters, nappies or toys.
- The house (5 min). Separate cups, plates, cutlery and towels for now. Wash soiled bedding and clothes on a hot wash. Wipe down shared surfaces and toys.
- Rest and low contact (3 min). Sleep, and keep close contact low while you're unwell — especially with the child, and especially with an older relative in the house (see below).
- Comfort. Whatever pain or fever relief you already use, use it as your own label says. Nothing you take will shorten the illness itself.
If an older relative lives with you: an adult over 65, or anyone who is frail, has diabetes or kidney disease, or takes several regular medicines, should be given an earlier call to their clinician if they develop symptoms. Until then: separate cups, plates and towels, wash your hands between them and anything you touch, and keep the hugs and kisses to a minimum for a few days.
Your realistic next 24 hours
A realistic tomorrow is not a cure. Expect: the temperature settling or gone, the mouth still uncomfortable when you swallow but less so than tonight, and you being tired rather than wiped out. The blisters will still be visible and may itch, dry out or flake as they heal — that is the normal course, not a sign that something has gone wrong.
Good 24-hour markers: fluids going in more easily, eating a few bites, temperature settling, blisters starting to dry.
If none of that has shifted by tomorrow, or you're getting worse, ring your GP/doctor's office rather than pushing through the school week.
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Part 2 — What to avoid
- Don't pop, peel or scrub the blisters, and don't apply alcohol, peroxide, strong antiseptics or household cleaners to them.
- Don't buy antibiotics, steroid creams, "mystery powders" or herbal powders online or without advice. Antibiotics don't cure HFMD — the NHS is explicit that you cannot take antibiotics or other medicines to cure it — and the CDC advises never giving aspirin to a child.
- Don't share cups, cutlery, towels, bedding or food while you're contagious.
- Don't go to work, school, nursery, a care home or a visit with a frail relative while you have a temperature or fresh blisters.
- Don't rely on hand sanitiser alone. For HFMD the CDC's advice is soap and water for at least 20 seconds, and keeping children's hands clean too.
- Don't scrub the house down with harsh chemicals. Handwashing, shared-surface cleaning, and not sharing personal items is what actually reduces spread.
- Don't push yourself through the week on "just a temperature". Fever plus fresh blisters is exactly the combination that spreads it at work.
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Work: what each option really means
| Option | What you gain | What it costs | When it makes sense |
|---|---|---|---|
| A. Go in with fresh blisters and a temperature | Keeps income and normalcy | You hand a very contagious virus to coworkers; you're most contagious in the first five days after symptoms start | Rarely — and not at all if your work involves babies, frail older people, food handling or health care |
| B. Stay home while febrile or blistering is fresh, or work from home | Protects coworkers and the people you live with; you actually get more done | Unpaid or partial day, childcare logistics | Your default this week, especially with a school run in the mix |
| C. Go in only if you're fever-free, feel well, and can avoid close contact and shared surfaces | Some normalcy back | Residual risk of passing it on | If you genuinely have no option — favour email and phone, wash your hands often, share nothing, and keep distance from anyone pregnant, immunocompromised or frail |
Your workplace's own sick-leave and return-to-work rules decide the paperwork side; staying home while you're contagious is the part that protects other people. A short, factual note usually smooths this over — see the script below.
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Scripts you can screenshot and send
To your manager or work:
> Hi [name], I picked up hand, foot and mouth disease from my child. The NHS says it usually clears on its own in 7 to 10 days, and I'm expecting to be back on [date]. I'll stay off while I still have a temperature or fresh blisters, and I'll let you know as soon as I'm able to work again. Happy to send a medical note if you need one. Thanks for understanding.
To your child's school or nursery:
> Hi, [child] has hand, foot and mouth disease. It's a common childhood illness that usually clears on its own in 7 to 10 days and isn't dangerous for most children. He'll stay off while he's unwell with a temperature or a painful mouth, and he can come back once he's fever-free and eating and drinking normally. Please let me know if you'd like a note.
To an older relative in the house:
> Hi, I've caught hand, foot and mouth disease from [child]. I'm most contagious for the first few days, so could we use separate cups, plates and towels for now, and I'll wash my hands before I touch anything in the shared space? I don't want to pass it on to you.
Asking for help this week (you're allowed to ask):
> Hi [name], I've got hand, foot and mouth disease and a school week ahead of me. Could you cover one school run or one meal this week? I'd really appreciate it — and I'll return the favour as soon as I'm back on my feet.
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Part 3 — Red flags and the decision tree
Step 1 — Emergency now
Call your local emergency number now if you, or the older relative in the house, have any of these: chest pain; difficulty breathing; collapse, fainting, or being hard to wake; sudden weakness in one side of the body, slurred speech, or a drooping face; a seizure that doesn't stop; confusion or unusual drowsiness; severe abdominal pain; heavy bleeding. Don't drive yourself if you can avoid it.
Step 2 — Same-day medical advice
Ring your GP/doctor's office, an urgent care service, or seek same-day advice if you have any of these:
- You can't keep fluids down, or you show signs of dehydration: very dark urine or no urine for many hours, a dry mouth, no tears, dizziness or fainting when you stand up
- A very high temperature, or you feel hot and cold or shivery (the NHS advises urgent GP advice for a very high temperature or feeling hot, cold or shivery)
- The blisters, or the skin around them, become red, hot, swollen, very painful, or start oozing pus
- Mouth ulcers so bad that you cannot drink
- Symptoms not improving after 7 to 10 days (the NHS advises seeing a GP if they don't improve in that time)
- You are pregnant, or could be — the NHS advises seeing a GP if you get HFMD in pregnancy, and avoiding close contact with anyone who has it around the time of the birth
- You have diabetes, a weakened immune system, or take medicines that suppress immunity — in that case, ask for an early review rather than waiting it out
Step 3 — Home care and a daily check
Mild fever, painful mouth ulcers, and spots or blisters on hands and feet, with otherwise normal eating, drinking, energy and thinking — that is the home-care section above. Check yourself once a day (temperature, how much you're drinking, whether the blisters look the same), and move up to Step 2 the moment anything there appears.
For the older relative: use the same three steps, but if they develop any symptoms at all, treat it as Step 2 — call their clinician early rather than waiting.
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*This is general home-care guidance for a mild, self-limiting illness. I cannot diagnose you here, and this is not a substitute for a doctor — the red-flag list and your own judgement are the parts that decide when to go in.*
Source: nhs-conditions https://www.nhs.uk/conditions/hand-foot-mouth-disease/
Source: cdc-clinical https://www.cdc.gov/hand-foot-mouth/about/index.html
*(Both pages checked 5 November 2026.)*