
CARLSON’S CORNER · Dr. Will Carlson, MD · Board-certified Emergency Medicine · Co-founder, Vacation Medicine · About Dr. Carlson →
You press your hand to your child’s forehead in the rental, the thermometer reads 102°, and your evening on 30A suddenly stops. I get it — few things rattle a parent like a fevered kid far from home. So let me give you the same framework I give families in the emergency department: a fever is information, not an emergency by itself, and most of the time you can handle it right where you are.
What a fever really is
A temperature of 100.4°F (38°C) or higher is a fever. It is your child’s immune system doing its job — usually against a common virus. The height of the number tells you surprisingly little on its own. A child bouncing around the condo at 102° is generally in better shape than a limp, glassy-eyed child at 100.5°.
Watch your child, not the thermometer
The questions I actually care about: Is she drinking and making wet diapers or trips to the bathroom? Is he alert and consolable when the fever is treated? Is breathing comfortable? Those answers matter far more than the exact reading. Treat the child, not the number.
Comfort care that actually helps
- Offer fluids often — water, an electrolyte drink, popsicles, or breast milk/formula for little ones.
- Dress them lightly and keep the room comfortable; skip the bundling.
- A fever reducer can help them feel better: acetaminophen (for most ages) or ibuprofen (typically 6 months and up), dosed by your child’s weight — check the package or ask the pharmacist if you’re unsure.
- Never give aspirin to a child or teen, because of the risk of Reye’s syndrome.
You don’t have to wake a peacefully sleeping child just to treat a number — rest is medicine too.
When a fever needs more than home care
Get in-person or emergency care — call 911 if it’s severe — for any of these:
- Any fever in a baby under 3 months old (100.4°F / 38°C or higher). This one is non-negotiable.
- Trouble breathing, fast breathing, or bluish lips.
- A rash that doesn’t fade when you press on it, a stiff neck, or a severe headache.
- A child who can’t be roused, is inconsolable, or shows dehydration (no urine, no tears, dry mouth).
- A seizure, or a fever that lasts more than three days or keeps climbing back.
How we sort it out from your rental
If you’re unsure which side of that line you’re on, that’s exactly what a quick video visit is for. We’ll look at your child together, talk through hydration and behavior, settle on a comfort plan, and decide whether a prescription or an in-person look is warranted — usually in about the time it takes to find the thermometer again.
Frequently asked questions
How high is too high?
There’s no single magic number for an otherwise healthy older child. How your child looks and acts — and how long the fever lasts — matters more. The exception is babies under 3 months, where any fever needs prompt in-person care.
Should I wake my child to give medicine?
Usually not. If they’re sleeping comfortably, let them rest. Treat when they wake and seem uncomfortable.
Could it just be teething?
Teething can cause a little warmth and fussiness, but it does not cause a true high fever. If your baby is genuinely febrile, look for another cause.
Can I alternate acetaminophen and ibuprofen?
It can be done carefully, but the timing and dosing trip a lot of parents up. We’re happy to walk you through it on a visit so you don’t double up by accident.
Not sure if it’s “wait it out” or “be seen”? Ask a physician.
Get a board-certified doctor’s read in minutes, right from your rental. Book a virtual visit →
This article is general information, not a diagnosis. If you think your child is having an emergency, call 911 or go to the nearest emergency department.