Fever in children: when to worry

Paediatrics & newborn clinic · 4 November 2026

Fever is the body's normal response to infection and is usually caused by simple viruses.

Use a digital thermometer and give an antipyretic at the dose for your child's weight.

See a doctor at once if the child is under 3 months, the fever is over 39.5, or there are fits, marked drowsiness or a rash.