According to Everyday Health, acne usually clears up by the time a person reaches adulthood. However a minority of adults continue to experience acne and problem skin, which needs to be treated.
The Mayo Clinic explains that acne is a persistent skin condition that usually appears on the face, back, chest and shoulders. It is caused by the hair follicles becoming blocked with oil and dead skin cells. Acne is associated with hormonal changes that occur during puberty, which increase the production of sebum.
Over-the-counter medications are available at drug stores, and include creams, ointments, lotions and gels. The Mayo Clinic lists prescription oral antibiotics and oral contraceptives for women as treatments. Blue light, pulsed light, heat energy and diode laser treatment are also available options. In severe cases, a doctor may prescribe isotretinoin.