Bamboo leaching water has the effect of clearing heat and purging phlegm. Bamboo leech water is brownish yellow clear liquid; sour flavor, gas is different, has the effect of clearing heat and suppressing alarm, moistening dryness and cleansing phlegm. It is used for cough and phlegm, strong tongue in stroke, asthma and chest tightness, as well as children’s phlegm-heat convulsions (pediatric diseases with fainting, convulsions, convulsions as the main manifestations) and other conditions. Bamboo leech water is taken orally, 15-30 ml once, twice a day, pediatric discretion, or as directed by the doctor. The adverse reactions and contraindications of Bamboo Leach is not clear. During the use of Bamboo Leach, patients should go to the hospital in case of abnormal physical discomfort. Patients need to follow the doctor’s instructions for regular review, so as to understand the recovery of the disease.