How Is Fever and Flu Related?

Q:
How is fever and flu related?

A:
Fever is a higher than normal body temperature. It is the most common symptom of the flu.

Although fever may cause worry, it helps the body fight infection and is usually not harmful.

A person with the flu may experience a fever that:

  • Increases quickly, rising to a peak of 101–104 F within 12–24 hours.
  • Comes and goes, especially if medicines are used to treat it.
  • Typically lasts 3–5 days.

Remember: you should contact a doctor if the high body temperature lasts for more than 3 days or gets worse.

Keyword: fever flu; flu fever

* The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.