Constant acne + acne scars

I've been struggling with acne / acne scars for a long time. Last fall was the most severe it's been and recently I noticed I still constantly have active acne somewhere on my face. I currently have acne basically around the perimeter of my face. Any tips on getting rid of this reoccurring acne?? I've been to a dermatologist once and he prescribed me strong shit I didn't want.