I am considered to be a thin cyster, and still suffer from the acne. I have been on BCP for almost 2 yrs and that seems to help some. I only have small flare ups.
It has to do with the hormones. And somewhere I read that too much sugar can cause your glands to overproduce oil, causing acne too. This is debated, but makes sense.
Have you been to the acne forum? Soem have had success with ProActiv, or a generic version. A great site is
www.acne.org
Good Luck!