Pronay not. You need a good acne cleanser and the matching toner to go along with it. Oddly enough you probably need a moisturizer too. A good esthetician can help you pick the right skin care products for your ski problems.
Sometimes. For some people the high tannins can have anti inflammatory effects, reduce irritation, balance ph, and reduce the bacteria that causes acne. It does not help everyone but is an expensive product to try.
No. If you have cystic acne, then you deserve better. Life's hard enough without this. A dermatologist visit is in order; even deep cystic acne is cleared by some of the "big gun" medications, though they are unpleasant and somewhat risky. Good luck.
How can I prevent back acne and on my bum? I know it develops bc I exercising. I exfoliate when necessary and use witch hazel sometimes as a toner.
Acne. Your doctor may be able to help you with prescribing a antibiotic/acne medicated body wash as well as retin-a. This will help address the 3 ways that lead to acne - oil production, clogged pores, and bacteria. You may also try to wear lose fitting clothing particularly during activities with high perspiration.