About acne disease:
Acne medically known as Acne Vulgaris is a skin disease that involves the oil glands at the base of hair follicles. The word acne comes from the Greek word acme meaning "the highest point". It was originally misspelled, with a 'n' rather than a 'm' in 1835. Acne occurs most commonly during adolescence, and often continues into adulthood. In adolescence, acne is usually caused by an increase in testosterone, which build-up during puberty, regardless of sex. Acne usually improves around the age of 20 but may persist into adulthood also.