Chinese medicine believes that wind is the longest of all diseases, and wind is good at traveling and several changes. Therefore, the wind evil into the body will be manifested as allergic symptoms, such as urticaria, eczema, geriatric itchy skin, nodular itchy rash, allergic rhinitis, variant asthma and other diseases. Specific treatment mainly focuses on dispelling wind and relieving the surface, but it should also be treated separately according to the specific situation. If there is a deficiency of yang qi and external wind-cold, Gui Zhi Tang can be used. If Yang deficiency is accompanied by phlegm and water-dampness, Ling Gui Zhu Gan Tang can be used, and if there is blood stasis at the same time, Gui Zhi Fu Ling Wan can also be used. If it is wind-cold attacking the surface, one can use Ephedra-Huang Tang, or if the body is weaker, one can use Ephedra-Huang and Gui Zhi Half-and-Half Tang. If it is wind-heat attacking the surface, Yin Qiao San can also be used to treat it.