Duac is a treatment for mild to moderate acne. It comes in gel form and contains two main ingredients - clindamycin, an antibiotic; and benzoyl peroxide, an antibacterial and keratolytic (peeling) agent, which reduces acne causing bacteria and reduces blackheads and whiteheads.
During the initial few weeks of treatment, most people will experience an increase in skin peeling and reddening of the affected area. This should lessen over time. Benzoyl Peroxide, one of the main ingredients in Duac, increases your sensitivity to the sun and sunlamps, so excessive or prolonged sun exposure while using Duac should be avoided.
Gently wash the affected area with a mild cleanser and make sure the skin is completely dry afterward. Apply a small amount of gel to the entire affected area/s each evening and rub in. If the gel does not easily rub into the skin then you are using too much. You should wash your hands after each application. Allow the gel to dry on the skin, do not wash it off.