Pediatric Fever: When to Worry and When to Wait
A child with a fever is one of the most common — and most worrying — reasons parents call us. Here's what's normal, what isn't, and exactly when to seek emergency care.
Understanding fever in children
Fever is a sign the immune system is working — not a disease itself. Most childhood fevers come from viral illnesses and resolve on their own within 2–3 days.
Age matters most
Under 3 months: any fever (100.4°F or higher) is an emergency. 3–6 months: fevers above 102°F need evaluation. Over 6 months: fevers up to 104°F can usually be watched at home if the child is otherwise well.
Red flags — come to the ER
Stiff neck, severe headache, persistent vomiting, rash that doesn't blanch when pressed, difficulty breathing, extreme drowsiness, dehydration, or fever lasting more than 3 days — all warrant ER evaluation.
Comfort measures at home
Light clothing, plenty of fluids, age-appropriate doses of acetaminophen or ibuprofen (per pediatrician guidance), lukewarm baths if uncomfortable. Avoid ice baths and alcohol rubs.
When to call the pediatrician vs. ER
Call the pediatrician for daytime questions, mild fevers in well-appearing kids over 6 months. Come to the ER for infants under 3 months with any fever, red-flag symptoms, after-hours concerns, or any child you're genuinely worried about.
What we do at the ER
Quick triage, fever assessment, examination, often a urine sample and bloodwork. Most kids go home with reassurance and a clear treatment plan — but we catch the serious cases.