History Summary ,Zhou,boy,13years old , went to The First Affiliated Hospital of Henan University of CM where he was treated for "Skin purpura was found for more than 1 month and urine test was abnormal for 1 week". More than one month ago, new skin blisters and papules appeared on both lower limbs of the child, and a few bleeding spots were symmetrically distributed, which were higher than the skin surface, did not fade after pressure, and had no abdominal pain or joint pain, urine routine examination showed no obvious abnormality, went to Jiangsu Provincial Hospital of Chinese Medicine where he was treated, it was diagnosed as Pityriasis rosea,after external application, herpes subsided, and skin bleeding spots were still seen. After taked with vitamin C tablets and Traditional Chinese Medicine, still being skin bleeding, abdominal pain, and occasional joint pain,abnormal urine routine was found 1 week ago, so he went to The First Affiliated Hospital of Henan University of CM for further treatment on April 6, 2022. Diagnstic information: The patient was clear-headed, energetic, the skin of both ,l,ower limbs can be seen scattered in needle-like bleeding spots, accompanied by abdominal pain, and occasionally joint pain,no exogenous factors in the near future, sleep and diet were well, urination and defecation were normal. Red tongue,thin white fur, floating pulse.,TCM diagnosis, purpura disease, syndrome of wind-heat injuring collaterals.,Western medicine diagnosis, henoch-schonlein purpura,Therapeutic methods, Based on the principle of dispelling wind and clearing heat and cooling blood and eliminating purpura, the patients were treated with traditional Chinese medicine Qufeng Xiao dian Prescription, Shenyankangfu tablets, Qufeng xiaodian mixture and Benapril hydrochloride tablets.,Clinical Outcomes, Purpura subsided, urine test was normal, and there was no recurrence after more than 1 year follow-up.