Acne is a common skin condition that occurs when hair follicles become clogged with oil and dead skin cells. It typically manifests as pimples, blackheads, or whiteheads, and commonly appears on the face, forehead, chest, upper back, and shoulders. Acne can vary in severity, from mild to severe forms such as cystic acne, which is characterized by deep, painful pimples, nodules, and cysts. Treatment options for acne depend on its severity and may include topical creams, oral medications, and procedures such as chemical peels or laser therapy.