Ok first of all really deep bad acne is usually caused by hormones and genes. Especially if it comes on in the 20's for a person. Im in my early 30's and have developed bad deep acne on my back. My back was perfect in my teens and 20's. Not fun and very painful if messed with. One thing I've read is that the formation of DHT (dihydrotestosterone) build up in your body as you get older can cause this. It's a genetic factor. Tell me, are you by chance losing your hair ( balding on the scalp) as well? My best advice is to look to your diet for a cure. Topical acne solutions are wasted trying to cure the symptoms not the source of the problem.
