How many days you can take Tongzhu to get results is related to the severity of the patient’s condition, the use of medication, and so on, and cannot be generalized. Tongcao is the dried stem pith of the plant Tongtuomu in the family of Wujiake. It is sweet and light in flavor, and slightly cold in nature. It belongs to the lung and stomach meridians. It has the efficacy of clearing heat and diuretic, and passes qi to lower breast milk. It is used for damp-heat gonorrhea (increased frequency of urination, drenching and astringent pain), edema and urination, and lactation. The efficacy of Tongcao alone is limited, together with the specifics of the patient’s condition, the use of medication, decoction, compliance and other aspects of the impact of the patient, for the patient, the onset of action time does not have a fixed time. It is recommended that patients use medication under the guidance of a doctor, do not take medication on your own, so as not to delay the condition.