After drinking red bean and barley water diarrhea, you can drink some warm water or light salt water to prevent dehydration and electrolyte disorders in the body. For those with mild symptoms, you can use hot towels to apply hot compresses to the abdomen, and you can also massage the abdomen clockwise to facilitate the discharge of residual feces. If the symptoms are obvious, you can take montelukast to stop the diarrhea. Generally after drinking red beans and barley water diarrhea, keep a light diet for a few days, diarrhea may slowly stop, but if the diarrhea condition is more serious, and accompanied by abdominal pain, nausea, fever and other symptoms, it is recommended to go to the hospital to seek treatment options. The reason for diarrhea after drinking red beans and barley water may be: 1. Because of personal constitution, allergy to the ingredients in red beans and barley water, resulting in the symptoms of diarrhea. If in eating other food containing red beans, barley, also appear diarrhea, should consider the possibility of allergies, the future should be away from the corresponding ingredients, avoid eating; 2, red beans, barley after a long period of storage has the possibility of mold, if cooking with ingredients that have become moldy and deteriorated, consumption will also cause diarrhea. This situation should go to the hospital to deal with, through gastric lavage and other ways to remove intestinal contents, after a few days of light diet can be. In addition, after drinking red beans and barley water diarrhea, may also be a coincidental phenomenon, and red beans and barley water has nothing to do with, consider with the stomach cold, food poisoning, acute enteritis and other conditions, just happened to drink red beans and barley water after diarrhea.