Acne vulgaris is an extremely common dermatological disease that is found typically in adolescence and young adulthood. Acne vulgaris manifests with open and closed comedones (blackheads and whiteheads), papules, pustules, nodules, and cysts on the face, neck, and trunk. Scarring can occur, particularly if the lesions are inflamed and deep, even in the absence of external manipulation (eg, picking and squeezing) of the skin.