Overuse of antibiotics is a serious and growing issue. Antibiotic resistance bacteria are on the rise. There are no easy solutions to the problem. Antibiotics need to be thought of as a limited resource to be used only when appropriate.
In the late 90's when I worked in pharmaceutical advertising. My firm had a popular antibiotic as a client. Back then we talked about how MDs would over-prescribe these drugs. One of the larger problems, then and now, is patients asking for and expecting antibiotics from their doctors.
The Center for Disease Control and Prevention has published this straightforward chart to outlining when and when not to use antibiotics. This chart is very useful in keeping track of the appropriate times to use antibiotics.