Fever

What is fever?

A fever is a body temperature above about 38°C (100.4°F), usually a sign that the body is fighting an infection. Most fevers settle within a few days with rest and fluids.

When to seek care: See a doctor promptly if a fever lasts more than three days, exceeds 39.5°C, comes with a rash, stiff neck, breathing difficulty, severe headache or confusion, or affects an infant under three months.