Influenza

Influenza, or flu, is a disease of the nose, throat and lungs that is caused by a virus.  While people often use the term “stomach flu”, that is not influenza (it’s usually caused by a different virus). If you get the flu, antibiotics won’t help you feel better, because they kill bacteria, not viruses. Using antibiotics when they are not needed can cause more harm, including unwanted side effects and antibiotic resistance.

There are specific medicines, called “antivirals”, that are effective against the flu.  Not everyone who has the flu needs to take these medicines – many will get better on their own, just with rest and time. 

However, people who are at higher risk of severe flu should talk with their doctor as soon as possible, to see if these medicines would be appropriate for them.  Usually, these medicines need to be started within 1-2 days of having symptoms to be effective. 

People at risk for severe flu include those who have chronic medical conditions, who are under 2 years or age 65 years or older, or who are pregnant. 

For more information, see: What are Flu Antiviral Drugs | CDC