Acne is a disease of oil glands. It begins in late childhood or early adolescence. Your hormones begin to change and this causes your skin oils to increase in amount and change in composition. As a result, your skin cells become “stickier” and plug up your pores. Plugged up pores are called whiteheads and blackheads. Bacteria begin to overgrow in these plugged up pores and this causes pimples and cysts. Adolescent acne occurs principally in the T zone of the face (forehead and center face), while adult acne occurs mostly on the chin, jaw lines and neck. The back and chest can be affected in both age groups. Treatments are aimed at unplugging the whiteheads and blackheads with Retin-A and retinoids, and in decreasing the bacteria numbers with antibiotics. Hormone therapy works with both adolescents and with adults. Accutane is generally reserved for the most severe cases. CO2 lasers help improve the look of acne scars. The Isolaz laser is helpful in removing blackheads and in killing bacteria.