Some doctors recommend salicylic acid ointment which smoothes the skin by promoting the shedding of psoriatic scales. Using salicylic acid over large areas of skin however may cause the body to. 8 Top Home Remedies For Psoriasis With Images Home Remedies Moisturizers for dry skin. Skin treatment for psoriasis . For mild disease that involves only small areas of the body less than 10 of the total skin surface topical treatments skin applied such as creams lotions and sprays may be very effective and safe to use. Coal tar a common treatment for scalp psoriasis. Your doctor may prescribe steroids lotions solutions sprays or foams to treat moderate to severe scalp psoriasis. Steer clear of tablets. Studies suggest this plant can improve psoriasis. Sunlight kills the overactive white blood cells that are attacking healthy skin cells and causing the rapid cell growth. Use unscented gel or cream with 0 5 in it on your skin. For mild disease that involves only small areas...