Taking prescription anti-viral drugs within a few days of the start of the flu may be especially important for people older than 65.

According to a Centers for Disease Control and Prevention study of 6,593 older adults hospitalized for flu, those who received anti-virals earlier were much more likely to leave the hospital sooner. They were also half as likely to need extended care (in a nursing home, for example) after discharge. According to the CDC, and virals, recommended  for most adults with flu, are most helpful if taken within 48 hours of getting sick.

See your doctor right away if you have symptoms such as a significant cough, body aches, sore throat, fatigue, runny nose, and fever.

Source: Consumer Reports on Health December 2015