Artificial urticaria is a chronic pruritic skin disease, characterized by itchy skin, scratching the skin appears stripes of red wind, the occurrence of the disease may be related to the patient’s body mast cell degranulation, causing the release of histamine, thus causing the occurrence of skin wind, Western medicine treatment commonly used antihistamines, can improve the symptoms to varying degrees, but can not cure the disease, and Chinese medicine treatment, can change the patient’s constitution, stabilize the mast cell membrane, so as to achieve the purpose of cure. The author applied self-prepared formula with allergy decoction to treat this disease with good efficacy, and 10 cases with ketamine as a control, which is reported as follows 1, clinical data (1) case screening Where the skin itching, scratching after the formation of wind masses lasting more than 1 month, skin (2) observation of 42 patients with artificial urticaria in the dermatology outpatient clinic from July 1995 to December 1999, randomly grouped, 32 cases in the treatment group, 2 males and 12 females. The youngest was 20 years old, the oldest was 65 years old, and the duration of the disease was 1 to 6 months. The duration of the disease ranged from 1 to 6 months in 20 cases, and more than 6 months in 12 cases. The age and duration of disease were statistically not different from those of the treatment group. The treatment group was treated with the decoction of allergy with added flavor: Chai Hu 10g, Bai Zhu 10g, Fu Ling 20g, Fang Feng 10g, Wu Mei 10g, Bitter Ginseng 10g, In the control group, 25mg of ketamine was used 3 times daily, and both groups were treated for 20 days. -The rash was cured, the itching was reduced significantly, and the skin scratching sign (+-) was considered effective; the rash was cured or not, the itching was reduced or not, and the skin scratching sign (+) was considered ineffective. 50 1 10 Effective 18 56, 25 8 80 Ineffective 2 6, 25 1 10 Total effective 30 93, 75 9 90 The results showed that the cure rate and total effective rate of the treatment group were higher than those of the control group, and there was no difference by statistical treatment (p>0.05). 4. The itchiness of the skin was unexplained, especially at night, and after scratching the skin, a large number of red streaks appeared, and the itchiness was even worse, even affecting sleep, and the itchiness did not decrease after treatment with antihistamines in a hospital. The patient was diagnosed with artificial urticaria, which is characterized by dampness and heat, and wind obstruction. The treatment is to clear heat and remove dampness, dispel wind and relieve itching, regulate liver and spleen, and activate the meridians. Based on clinical experience, the author believes that artificial urticaria is mostly due to internal dampness, heat and wind evil in the patient’s body, combined with deficiency of liver, blood and yin, resulting in a mixture of deficiency and actuality, and a prolonged illness. The combination of all these medicines has the effect of regulating the liver and spleen, clearing dampness and heat, activating blood circulation, dispelling wind and relieving itch.