According to the Center for Disease Control (CDC), "Antibiotics do not fight infections caused by viruses like colds, most sore throats and bronchitis, and some ear infections. Unneeded antibiotics may lead to future antibiotic-resistant infections. Symptom relief might be the best treatment option."

Below is a video from the CDC regarding antibiotics:

For a quick list of do's and don'ts regarding antibiotics, please visit the CDC's website http://www.cdc.gov/Features/GetSmart/