Psoriasis in Chinese medicine refers to psoriasis, and there is no Li Shizhen treatment of psoriasis secret formula this statement. Psoriasis can be treated according to the liver depression and fire (liver qi is not clear which leads to fire and heat) certificate, wind-dampness skin certificate, blood deficiency and wind-dryness certificate, etc. by using gentian diarrhea and liver soup combined with gardenia free and easy powder, eliminating wind powder and angelica drink. 1. Liver depresses and transforms the fire certificate: liver depresses and transforms the fire certificate may manifest for the rash color red; Accompanied by the heart to be irritable, the insomnia dreamlessness, the vertigo and so on, by the gentian grass, the firewood hu, the scutellaria baicalensis, the gardenia, the birth of the ground yellow, the plantain seed, the zegui diarrhea, the angelica sinensis, the tribulus terrestris, the white fresh peel, the bitter ginseng, the raw licorice and so on composition of gentian cathartic liver soup combined with gardenia free and loose loose loose powder, have to dredge the liver to regulate the qi, the fire to relieve the itching role, may use to treat the psoriasis. 2. wind-dampness skin evidence: the skin lesion is dark red or light brown flake, roughness and hypertrophy, itchy, especially at night, etc. is the manifestation symptom of wind-dampness skin evidence, it can be used to treat with elimination of wind, composed of thorns, windbreak, gypsum, motherwort, bitter ginseng, etc., it has the function of eliminating wind and removing dampness, clearing away heat and stopping itching. 3. Blood deficiency, wind and dryness syndrome: blood deficiency, wind and dryness syndrome is manifested in the form of skin lesions that are pale or grayish in color, resembling withered wood, fat and rough like cow skin, etc. The treatment is to nourish blood and moisten dryness, and to relieve wind and stop itching, and angelica drink composed of angelica, flaxseed nut, gentian macrophyllum, white peony, and raw dihuang can be used for the treatment. The use of the above remedies should be under the guidance of a doctor, and if the medication has no therapeutic effect, it is necessary to consult a doctor in time.