10/14/2026
Fever is often part of the body’s response to an infection. Along with the temperature, watch your child’s breathing, hydration, and behavior.
Seek prompt medical advice when:
• A baby younger than 3 months has a temperature of 100.4°F (38°C) or higher—call immediately.
• A child from 3 months to 3 years has a temperature of 102.2°F (39°C) or higher.
• Fever lasts more than 24 hours in a child younger than 2 years, more than 3 days at age 2 or older, or returns after being gone for more than 24 hours.
• Your child is unusually sleepy, isn’t drinking, has fewer wet diapers, has persistent vomiting or diarrhea, has painful urination, or seems unlike themselves. Trust your instincts if you’re worried.
Severe breathing trouble, blue or purple lips, a seizure, or a child who won’t wake up: call 911. Other warning signs needing emergency care include a stiff neck, severe headache, or red/purple spots that don’t fade when pressed.
Full fever guidance: https://mipediatrics.com/conditions/fever
