It's clearing the way to greater things. Blackheads form when a clog or plug develops in the opening of your skin’s hair follicles. Dead skin cells and oils collect in the opening, producing a bump called a comedone. If the skin over the bump stays closed, it’s called a whitehead. If the skin opens, exposure to the air makes it look black, and a blackhead forms. Cosmedical peels and Microdermabrasion can help remove excessive oil, dead skin cells and bacteria. LED blue light therapy can also help kill the bacteria that causes active acne.