How many days does it take for a fever caused by influenza A to subside?
Disease description:
After contracting influenza A, the high fever persists without subsiding, the entire body feels scalding hot, and antipyretic medications seem to have little effect. These past few days have been extremely uncomfortable, and each day I eagerly hope for my body temperature to drop. I just want to know, how many days does it generally take for a fever caused by influenza A to subside?
Doctor's answer (1)
Dr. Ren Yi
Influenza A, short for Type A influenza, is an acute respiratory infectious disease caused by the influenza A virus. Fever usually subsides within 2-7 days, although the exact duration may vary among individuals.
Main symptoms of this disease include high fever, cough, sore throat, muscle or body aches, headache, chills, and fatigue. The fever caused by influenza A typically lasts 3-7 days; however, the duration varies depending on the individual's immune status and the virulence of the virus. Without complications, most people gradually recover within seven days.
Patients with better immune function, lower viral load, and timely access to effective treatment may experience shorter fever duration, usually subsiding within 2-3 days. For immunocompromised individuals, such as the elderly, children, pregnant women, or those with chronic underlying medical conditions, the recovery period may be prolonged, and fever may persist for 5-7 days or even longer.
Patients may use antipyretic medications such as ibuprofen or acetaminophen, but these should be taken according to the doctor's instructions or the dosage guidelines provided. Drinking plenty of water to stay hydrated and prevent dehydration is recommended. Practicing good personal hygiene, such as frequent handwashing, can help reduce the risk of virus transmission.
