Health professionals can diagnose influenza (flu) using your symptoms alone if many cases of a similar illness have occurred in the community and if the local health department has confirmed a flu outbreak.
Influenza (flu) usually comes on suddenly. In many cases you can pinpoint the hour when symptoms started. Symptoms develop 1 to 4 days after you are infected. Classic flu involves fever for about 3 days, followed by a gradual decrease in other symptoms.
In most healthy people, influenza will go away in 7 to 10 days. The worst symptoms usually last 3 to 4 days. Home treatment to ease symptoms and prevent complications is usually all that is needed. Antiviral medications can be taken to: Reduce the severit