Psoriasis therapies can be pictured in relationship to a ladder. The higher up the ladder, the more potent the treatments are and the more side effects they generally have. Treatments low on the ladder are mostly used for mild psoriasis, and stronger therapies up the ladder may become necessary as psoriasis becomes more severe. This class of topical medications is one of the most commonly prescribed therapies for mild to moderate psoriasis. They are available in many different forms, including ointments, creams, lotions, solutions, sprays, foam and tape.
Steroids are generally effective at treating the inflammation that occurs with psoriasis.
Coal Tar Topical coal tar preparations have been used for centuries to treat the scaling, inflammation and itching of psoriasis. Tar shampoos are very often effective for scalp psoriasis. Tar products stain clothing and linens, and some people may find certain products irritating to the skin. Sold as Dovonex in the U.S., this prescription medication is available in a cream, an ointment and a scalp solution. It is not known for working quickly, but it is effective and safe for long-term control of psoriasis, with few side effects.