Follow these easy tips to help prevent the spread of flu: Get a flu shot It is important to get the influenza vaccination each year to continue to be protected, since it wears off after 3 to 4 months and flu strains (types) change over time. For more information about the flu vaccine, see Flu Vaccine FAQs. Wash your hands In addition to vaccination, good hygiene is one of the best ways to help prevent flu and other illnesses from spreading. Wash your hands regularly. Cover coughs and sneezes Cover your mouth and nose when coughing or sneezing. Bin your tissues Throw used tissues in the bin immediately. Avoid sharing Don't share cups, plates, cutlery and towels with other people, if you can. Keep surfaces clean Clean surfaces such as your keyboard, phone and door handles regularly to get rid of germs. Self-care at home In most cases, you can treat mild flu or cold symptoms at home. NOTE: Antibiotics won't help Antibiotics do not reduce symptoms of flu or a cold, as these illnesses are caused by viruses. Antibiotics only work for bacterial infections. The Immunisation Coalition has produced the below video, which explains how contagious the flu virus can be, how long the virus lasts and what can be done to prevent infection.