What do I have to do to stop my acne?

I've always had clear smooth acne free skin until last summer I've become prone to acne due to Biotin vitamins and a eye shadow I tried and it broke me out and since than I now have mild acne.Due to the breakout with the eyeshadow and it cleared up it left me with Ice pick scarring on my cheeks they aren't deep but they are there,I don't want to stress out and break down because I now have mild acne and scarring but I'm getting close I just miss not worrying about my having acne and having to use a prescribed acne topical lotion everyday.Is there anyway I can cure my acne prone skin and not have it? Is there any treatments my dermatologist can give me to remove the scarring? Help please I just don't want to worry about acne again.