To help reduce the problem, try washing your face twice a day. I recommend trying benzoyl peroxide products first. If your face is oily, try a soap intended for acne-prone skin that is mild enough not to cause irritation. Avoid using moisturizers, but if you must, make sure they are not oil-based. Unclogging the pores is the key.
Acne begins when tiny glands in the skin become clogged with fluid or dead skin cells.
Oily hair can also make matters worse, so stay away from oily products like pomades or hair sprays for your hair. If your locks are long, wear them pulled back or consider a shorter style that keeps them off your face. And be sure to wash your hair at least once a week. A good dandruff shampoo will cut the oiliness of your hair and help keep your forehead cleaner. If you work out, bring along some pre-moistened alcohol towelettes to wipe the sweat off your brow.