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psoriasis

Psoriasis is a chronic, recurrent dermatosis characterized by scaly, itchy patches and inflammation. It is an increased growth of the basal layer of the epidermis. The patches are most commonly found on forearms, knees, legs, and on the scalp. Psoriasis is not contagious or infectious.CAUSES:The cause is unknown, but it is thought to be inherited and caused by a abnormality in a bodys immune system.SYMPTOMS:-Red patches covered with silvery scales-PruritusPlaque Psoriasis-Round or oval red patches-Covered with silvery scales-Generally slow growing-Occur on the elbow, knees, scalp, or near buttocksInverse Psoriasis-Usually moist-Occur in skin creasesPustular Psoriasis-Patches have pimples or pustulesGuttate Psoriasis-Many dime-sized or smaller patches that suddenly develop, simultaneously -Found in young people who had strep throat or viral upper-respiratory infection.50% of psoriasis sufferers also have fingernail abnormalities -Small indentations -Thickening DIAGNOSIS AND TESTS:-Physical examination by a health-care provider-Biopsy (to rule out other skin disorders)TREATMENTS:The treatment varies depending on the severity and type of psoriasisTopical Treatments-Applied directly to the skinFor stubborn patches on the hands and feetHigh-potency forms of:-Emollients -Corticosteriod For patches on delicate skinMilder forms of:-Calcipotrine (to slow production of scales)-Tazarotene (synthetic Vitamin A)-Coal -Tar -Salicylic acid (to remove scale)Phototherapy-Using UV lights or light treatments for widespread psoriasis. It maybe used in combination with tar or oral medication to improve the effectiveness of the treatment.Treatment For Severe Psoriasis Involving Large Areas Of The Body--Vitamin A derivatives-Methotrexate -Cyclospornine These treatments are very potent and may have some severe side effects involving kidneys, blood, or liver, use should be carefully monitored.PROGNOSIS:There is no cure....

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