I have severe acnes on my jaw and neck area, and some on cheeks and forehead. I also have obvious scars caused by previous acnes. I consulted two dermatologists and the acnes are not completely cured. Now my face even has two skin tone due to scarring and pigmentation I believe. May I know the cause of acnes around neck and jaw area? And what's the alternatives to cure them without having to see a dermatologist? Thanks.