Acne is one of the most common, chronic disorders affecting the hair follicle and sebaceous gland, causing a blockage of the follicle and inflammation. It mostly affects teenagers but also affects adult males and females of all races and ethnicity. 85% of 16-18 year olds are affected by acne. Acne is characterized by blackheads, whiteheads, pimples, and deep lumps (cysts or nodules) that look like and feel like boils. Acne most commonly occurs on the face, neck, chest, back, shoulders and upper arms.
>> The most common signs of acne are blackheads, whiteheads, papules, pimples, cysts or nodules.