Female, 38, weight 120lbs, height 5'4, good health, runner, etc., has been diagnosed with a staph infection, taking Septra DS and Clyndamiacin (sp). The infection started as abcess in right sinus and now I have lesions on face that also tested postivie for Staph. Quesition is I have been taking these antibiotics for over a week and the lesions are starting to close up, but they have never truly drained. Does an abcess need to drain or will the antibiotics just take care of the Staph? I'm afraid the lesions will just close up and the whole process will start over again which is exactly what happened in the first place to get to this point. Thank you for any information you may have.