According to the origin, it is divided into chrysanthemum, Chu chrysanthemum, tribute chrysanthemum and hang chrysanthemum. According to the color, they are divided into yellow chrysanthemum and white chrysanthemum. Their functions are slightly different. White chrysanthemum mainly disperses wind-heat, as well as calms the liver and brightens the eyes. Wild chrysanthemum can mainly clear heat and detoxify. Patients with inflammation of liver fire, hyperthermia of liver fire or wind-heat external sensation caused by redness, swelling and pain of the eyes or astringency of the eyes, this situation often occurs with white chrysanthemum, which has the effect of calming the liver and brightening the eyes. If sores, swelling and pain have to be cleared and detoxified, yellow chrysanthemum is used. White chrysanthemum is biased towards the effect of dispersing wind-heat, such as sore throat, cough, swollen eyes, red eyes and other cases of external wind-heat caused by wind-heat, you can use white chrysanthemum to dispel wind-heat and clear heat, brighten the eyes and reduce swelling.