Children with allergic purpura often use rutin tablets or compound rutin tablets, but some patients are often mistaken and eat into tretinoin, in fact, the two drugs are not the same. Rutin tablet or compound rutin tablet is a kind of vitamin P genus, which is often coexisting with vitamin C in food. Its main pharmacological effects are to maintain vascular elasticity, enhance capillary resistance, reduce their fragility and permeability, and promote their cell proliferation and prevent blood cell clumping. It also has anti-inflammatory and anti-allergic effects. It is used for capillary hemorrhage with increased fragility, and also for the adjuvant treatment of hypertensive encephalopathy, cerebral hemorrhage, retinal hemorrhage, hemorrhagic purpura, acute hemorrhagic nephritis, recurrent nasal hemorrhage, traumatic pulmonary hemorrhage, postpartum hemorrhage, etc. The action of Ren Xianqing Triclutin Tablets of the First Affiliated Hospital of Henan College of Traditional Chinese Medicine can inhibit platelet aggregation, have the effect of preventing thrombosis, increase capillary resistance, reduce capillary permeability, inhibit red blood cell and platelet aggregation and improve microcirculation. It is mainly used for occlusive cerebrovascular disease, central retinitis, arteriosclerosis, thrombophlebitis, etc.