Most acne is mild enough that over the counter, non-prescription medications can do an effective job of clearing up acne in as short a time as possible. Benzoyl Peroxide One of the most common – and most effective – treatments possible for mild acne, benzoyl peroxide is used daily by millions. It works by helping combat the bacteria that is partly responsible for acne in the first place: Propionibacterium acnes. It also helps to...