My daughter is 13, and you know what that means...acne. Ugh! We had a good routine down that was taking care of the occasional zit, but lately it has gotten much worse. She has used several OTC brands, made for teens, but they just aren't working. Has anyone had experience with Proactiv? Or more specifically, X-Out, which is made by the Proactiv folks for teens? It's quite expensive, and I don't want it to hurt her skin. I have read that it can burn. Anyone have experience, or with something better?