I have recently been told by a woman who claims that she had very bad Acne as a teen and young adult that she used a scrub composed of salt and olive oil, possibly every day to eliminate/prevent scarring. She would rub this on her face and consequently exfoliate layers of skin little by little. She has absolutely "perfect" skin today at 56 years- no scars and no wrinkles. She also said to drink a lot of water while you are doing this. It may take a while and possibly make your face a bit red( don't scrub too hard) but it seems worth the try. Good luck!