My back acne isn't getting better. Please recommend an effective treatment.

My back acne keeps recurring, and I also have dark scars. I have tried changing my body wash and applying medication prescribed by a dermatologist, but I haven't seen any significant results. Can back acne improve with treatment at a dermatology clinic? I am curious whether back acne can be treated with Aladdin peeling or lasers, if the condition can be managed without recurrence after treatment, if there is any pain or side effects, and what the cost is.