There is no such thing as “how often it is appropriate to drink”; how often to drink varies from person to person and from disease to disease, and should be taken according to the doctor’s instructions. If the decoction for the soup, under normal circumstances, 1 to 2 times a day can be taken, but also need to consult a doctor. Catch the yellow grass for the thuja family pull the root vegetable plants, to the whole grass into medicine, taste sweet, sex slightly cold, attributed to the liver meridian. The main effect is to clear away heat and remove toxins, dissolve dampness and remove yellow, diuretic and eliminate swelling, remove blood stasis and relieve pain. It is mainly used for treating headache of cold and flu, sore throat, jaundice with dampness-heat, edema, incontinence of urine, and swelling and pain caused by bruises and injuries. Externally, it can be decocted and washed with water or pounded and applied to the affected area to treat bruises. This drug should be used with caution for people with cold spleen and stomach, renal insufficiency is contraindicated, pregnant women are prohibited, and those who are allergic to the drug are prohibited. Specific drug use please consult a professional physician after use, do not use on their own to avoid adverse consequences.