Dapsone
"I had HORRIBLE acne on my back - all over. So bad I almost gave up. I went on birth control, and have been applying Aczone twice a day, and it's been working fabulously! Other creams haven't been as affective at all and also bleached my cloths. Aczone doesn't do that. I am also not peeling at all, which I usually get. I also had really bad cystic acne on my neck and it is COMPLETELY gone! It's so worth the price."