Okay, I think this stuff is full of harsh ingredients, so it depends on how desperate you are, but boy did it knock out my acne and make my sklin glow: Proactiv. You might have seen the infomercials. I don't use it anymore, but did for a few years and it really works. They probably have a website. It's a kit you order with cleanser, toner, and lotion.
Caution: It will bleach your clothes and face towels (scary I know), so wear/use old ones!