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.
Unpredictable and irritating, psoriasis is one of the most baffling and persistent of skin disorders. It's characterized by skin cells that multiply up to 10 times faster than normal. As underlying cells reach the skin's surface and die, their sheer volume causes raised, red plaques covered with white scales. Psoriasis typically occurs on the knees, elbows, and scalp, and it can also affect the torso, palms, and soles of the feet.
The symptoms of psoriasis vary depending on the type...