Fever: Causes & When to See a Doctor

Viral infections such as flu, COVID-19, and common cold frequently cause fever. Bacterial infections — urinary tract, throat, lung, or skin — may also raise temperature. In tropical regions, malaria and dengue must be considered when fever occurs with travel or local transmission risk.

Non-infectious causes include inflammatory conditions, certain medicines, and heat illness. Persistent or unexplained fever needs medical investigation.

Rest, adequate fluids, and light clothing help most mild fevers. Paracetamol or ibuprofen may reduce discomfort when used as directed on the package or by a healthcare professional — avoid exceeding recommended doses.

Track temperature and note associated symptoms such as rash, breathing difficulty, severe headache, or dehydration. Infants, elderly people, and those with chronic illness should seek medical advice earlier.

Seek prompt care for fever with stiff neck, confusion, rash that does not blanch, breathing difficulty, persistent vomiting, or if fever lasts more than three days in adults ( sooner in young children or vulnerable groups ).

A general physician can examine you, order tests when appropriate, and determine whether antibiotics or other specific treatment is needed.