Noninflammatory acne produces plugged follicles and a few pimples.
Inflammatory acne is characterized by many pimples, pustules, nodules, and inflamed cysts.
The lesions are found on the face, neck, chest, and shoulders. Inflammatory lesions often require intensive and individualized medical treatment under the direction of a dermatologist. Acne is treated by both topical and systemic drugs. The drug most frequently recommended is benzoyl peroxide in a 5 or 10 per cent concentration. The medication is applied to the skin daily or as frequently as necessary to produce mild dryness of the skin.