[Symptoms] Prevention [Cold] -Wash your hands often -Avoid close contact with anyone with a cold [Flu] -Wash your hands often -Avoid close contact with anyone with the flu -Annual vaccination -Antiviral medicines (see your doctor) [Airborne Allergy] 
Avoid those things that you are allergic to, such as pollen, house dust mites, mold, pet dander, cockroaches