He Shuang refers to the compound polyethylene glycol electrolyte bulk, mainly used to clean up the intestinal tract, and its drink generally in half an hour to three hours after the start of diarrhea, depending on the differences in the individual’s physical condition as well as the strength of the digestive ability and other factors related. If the patient’s physical condition is good and the gastrointestinal tract peristalsis ability is strong, then the drug effect onset time is shorter, then in half an hour to one hour will start diarrhea, if the patient’s physical condition is weak and digestion ability is poor, then the drug onset time is shorter and the onset of the drug time is longer, then in one hour to three hours will start diarrhea. When taking compound polyethylene glycol electrolyte powder, patients should pay attention to 2000ml of water and take it within 2 hours, and should pay attention to the light diet in daily life, can carry out appropriate exercise, avoid spicy, stimulating food and so on. It is recommended that patients should pay attention to their physical condition and maintain good dietary habits after taking it.