1 If you scrub too roughly, you'll deplete your skin's natural oils, and you'll irritate your acne. 2  Always scrub your chest gently to get rid of dead skin cells. 3  Take a shower every day. 4  If you don't clean your skin, you invite sebum and bacteria to collect on its surface, causing acne. Soaps containing these ingredients serve as shedding agents, which will help to curb acne. 2  If you scrub too roughly, you'll deplete your skin's natural oils, and you'll irritate your acne. 3  Always scrub your chest gently to get rid of dead skin cells.