Be Very Carefull with antibiotics. Missuse can kill or create MRSA, wich can be untreatable even in current conditions, and infect or kill others around you. Unless you are absolutly sure on what you are doing dont mess with it. On furthur note you body has its own means of fighting infection, Dial soap and good food do wonders. Most people are overprescribed by MD's on antibiotics which time would cure normally.