What is common to the age group between 12 and 17 apart from teen tantrums and high school crushes? The answer has to be acne. All teenagers have it in some form or the other and some even carry it over into adulthood, with consequences severe enough to merit a visit to the physician. Americans spend an astronomical amount on acne treatment.

Acne is the generic term for clogged skin pores, pimples and deep-seated cystic or nodular lumps occurring mainly on the face, neck, chest, back, shoulders and upper arms.

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