Wind Tuotuo, also known as urticaria, commonly known as rubella block, is a temporary vascular permeability increase in the skin mucosa and the occurrence of limited edema. Most patients can not find the exact cause, the common causes are food factors, drug factors, infectious factors, respiratory inhalants, or skin contact with a clinical manifestation of the triggering, in addition, the outside world of individual physical factors and the patient’s own psychiatric factors, endocrine factors, and systemic diseases can also be triggered. Multiple causes of stimulation can lead to mast cells and other inflammatory cell activation, the release of inflammatory activity of chemical mediators, such as histamine, pentetrahydroxytryptamine, arachidonic acid, etc., will cause vasodilatation and increased permeability, smooth muscle contraction, and glandular secretion, resulting in local or systemic symptoms. Urticaria symptoms should be actively to the regular medical institutions, follow the doctor’s instructions for examination and diagnosis of the cause of the disease, and active treatment, so as to avoid delays in the condition of the adverse consequences.