How many days does a fever from a viral infection usually last in adults?

Fever usually refers to an elevated body temperature. In adults, viral infections causing fever typically take about 3 to 7 days to recover, generally not exceeding 7 days. For fever caused by viral infections, medications such as ribavirin granules or oseltamivir capsules may be used under a doctor's guidance. During the febrile period, patients should ensure adequate rest and maintain warmth, both of which are beneficial for recovery.