I went to the doctor and had a swab done after having, a greenish heavy discharge and itching. It came back negative for a bacterial infection or chlamydia. It has cleared up somewhat, but I asked my doctor how I should continue to treat it and she put me on an antibiotics because the test they did "doesn't test for everything". I am hesitant to take antibiotics if I don't need to as they will interfere with other meds I'm on. Could it still be a bacterial infection even if it didn't show up on the test or could it be something else (and what would that be?) that will clear up on it's own?