Few parenting decisions feel as rushed as the 7 a.m. call on whether a slightly-off child should go to school. Keep them home unnecessarily and they miss learning; send them in too soon and they may spread an infection or struggle through the day. This simple guide gives you clear rules of thumb for the most common situations.
Signs your child should stay home
- A fever of 38°C (100.4°F) or higher, or a fever in the last 24 hours
- Vomiting or diarrhea within the last 24 to 48 hours
- An undiagnosed rash, especially with a fever
- Red, weepy, or crusty eyes that may be conjunctivitis
- A persistent cough or breathing difficulty
- Too unwell, tired, or in too much pain to take part in the day
When it's usually fine to go in
- A mild runny nose or slight cough with no fever and good energy
- The tail end of a cold once your child feels well again
- A long-standing, non-contagious condition like mild eczema or hay fever
- Feeling fully recovered and fever-free for 24 hours without medicine
The 24-hour rule
A common guideline is to keep children home until they have been fever-free for 24 hours without fever-reducing medicine, and free of vomiting or diarrhea for 24 to 48 hours. Always check your school or daycare's specific policy too.
Conditions that usually mean staying away
Some illnesses have specific exclusion periods to protect classmates, such as chickenpox until the spots have crusted over, or certain eye and gut infections. Your school, daycare, or local health guidance will have exact rules, and a clinician can confirm when your child is no longer contagious.
This is not a school decision
If your child has trouble breathing, a stiff neck, a rash that does not fade under pressure, repeated vomiting, severe pain, or is very hard to wake, this is an emergency, not a sick-day question. Call 911 (US/CA), 999 (UK), or 112 (EU).
When you're still on the fence
Trust your instinct: you know your child's normal behavior better than anyone. If they are quiet, clingy, off their food, and not themselves, that often tells you more than the thermometer. When you genuinely cannot decide whether a symptom is contagious or serious, a quick video chat with a verified doctor on iHealix can give you a professional read before the school run, saving an unnecessary day off or an unnecessary risk.