Wind-proof: Li Shizhen: Defender means protection. Its function is the most important in treating wind, hence its name. Those produced in the Northeast are called "Guan Fangfeng" and "Dong Fangfeng" and have the best quality; those produced in western Mongolia are called "Kou Fangfeng", those produced in Shanxi are called "West Fangfeng", and those produced in Shandong, Hebei are called "Mountain Fangfeng" and "Huang Fangfeng". "Fangfang", "Green Fangfeng". It is the root of the wind-resistant plant of the Umbelliferae family. It can dispel wind and relieve external symptoms, relieve dampness and relieve pain, relieve spasm and calm convulsions.