Psoriasis, also known as psoriasis, is a chronic inflammatory disease of the scalp that occurs on the head and has a clinical presentation that is dominated by erythema and scaling. Because psoriasis occurs over a long period of time, it tends to cause recurrent attacks. At present, the treatment of psoriasis can be applied through symptomatic treatment and various supportive therapies, using sequential and comprehensive treatment methods, so that the symptoms of psoriasis can be significantly relieved. If the psoriasis is new when it occurs and is not large in size, most exogenous drugs, such as analogues of vitamin D3, are used. If the symptoms of psoriasis are more intense or even accompanied by significant itching, glucocorticoids or the application of retinoic acid can also be used for application. In addition, the treatment of psoriasis can also be combined with immunosuppressive agents, such as methotrexate, retinoids, glucocorticoids, and also endogenous drugs. At the same time, ultraviolet light or combined Chinese medicine can also be used for psoriasis, both of which are effective in treating psoriasis of the scalp.