worked for me!
So after having pretty much every type of acne (blackheads whiteheads cystic etc) across my chest and shoulders my whole teen life I decided to stop hiding and see a doctor. Im allergic to natural penicillin but got an artificial derivative of this drug. Initially I had an awful break out (in places I've never had issues too) turns out that was the duac gel which I've stopped using. A month on and everything is clear! Finally I can focus on clearing up those scars! Pretty expensive in Australia and comes in really small packets but im stoked with the results and actually wear singlets now!