You may get rid of your acne just by gaining weight. About 20 pounds. Even eating total crap. Why? You don't have enough estrogen when you are underweight because estrogen levels requires a healthy percentage of fat. When you don't have enough estrogen, testosterone takes control in the body, and with a testosterone "dominance" you have acne.
That goes for males too right?
My skin problems increased dramatically after I lost 30 pounds, so now I'm gaining weight again, to see if it helps.