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Blackheads are oil, dirt and sebum that get trapped in pores and then harden. They most often occur on the nose, chin and forehead. Washing your face daily in the morning and evening before bed can help prevent blackheads from forming. And dermatologists can perform chemical peels to help treat blackheads as well as other similar acne...

Your skin naturally excretes oil every day. It helps keep your face hydrated, but it can also clog pores and make your face look dirty. Pores often appear.