The best thing Ты could do is avoid all of those TV commercials about products for acne. I've been there and none did a thing. They worked in the beginning, but in overall, it's just lies. Talk to your doctor или a dermatologist about it. They are the ones that can Совет Ты about what is the best for you. btw, I'm talking from personal experience.
I personally don't have acne...so I can't exactly say what will stop it, but Ты can prevent it with this really cool stuff called SkinFix and comes in a little round container. It looks like персик coloured gel and feels a little greasy - but it works! Just read the instructions and your acne will hopefully be down in a couple days. (This also works for scars and moisturizes the skin too)