Psoriasis is a chronic inflammatory disease, the exact cause of which is not clear, and is often treated with the following methods: i. Chinese patent medicines, anti-silver capsules, anti-silver granules, danqing capsules, yujin psoriasis tablets, etc. Second, immunosuppressants, methotrexate, cyclosporine, leucovorin polysaccharide, etc. Immunomodulators, transfer factor capsules, Bozhi glycopeptide, thymidine tablets, etc. Four, retinoic acid drugs, commonly used Avionics capsules. Topical drug therapy, fluticasone propionate ointment, carbotriol ointment, zinc pyrithione aerosol, etc. Sixth, bath therapy, can use mineral bath, tar bath, wheat rice stone bath, etc. Seven, phototherapy, treatment with narrow-spectrum ultraviolet radiation.