It has a sweet and cold taste, and has some medicinal value. It is also a good source of information about the effects of the herb on the body. 2, the efficacy of the herb is to dispel phlegm, especially coughs with phlegm, the herb can improve such symptoms. 3, with the effect of clearing heat and clearing the eyes, due to fire caused by blurred eyes or swollen and painful eyes, can be improved by the herb. 4.Wheel herb can play the role of antidiarrheal, diuretic, relieve sore throat or toothache and other pain, such as the appearance of similar symptoms, can be under the guidance of a professional doctor, through the wheel herb to treat the disease.