Short periods of exposure to the sun reduces
psoriasis in most people. Avoid sunburn, which injures
the skin and may make psoriasis worse or cause psoriasis to appear on other
areas of your skin. Your skin should be examined once or twice a year for skin
damage or skin cancer.
Drugs that come in pill, lotion, solution, and ointment forms (such
as psoralens and tars) make your skin more sensitive to the sun. Be careful
when exposing your skin to sunlight if you are using one of these products. Use
sunscreen on areas of your skin not affected by psoriasis.
Psoriasis is a common skin disorder that produces thick red plaques covered with silvery scales. The most common areas affected are the scalp, elbows, knees, and lower back, although any skin surface may be involved. It can also occur in the nails and body folds.
Psoriasis is not contagious and cannot be passed from person to person. It can, though, occur in members of the same family.
Psoriasis usually begins in early adulthood or later in life. In most people, the rash is limited to a few...