Drinking red beans and barley water appears stomach pain may be due to red beans and barley belongs to the indigestible food, into the stomach is not easy to be emptied by the stomach into the duodenum, resulting in gastric pylorus obstruction, stomach cramps; another possibility is that the patient itself has gastritis or gastroduodenal ulcer, after eating these indigestible food, will stimulate the secretion of gastric acid, aggravate the damage to the gastric mucosa caused by gastric acid pain. It can be treated with antispasmodic and analgesic drugs or gastrointestinal motility drugs first to see if the symptoms of pain can be improved, and if necessary, other drugs can be added, such as Gastrodin. You can also vomit the stomach contents to relieve the pain. If necessary, a gastroscopy can be done to clarify the cause of the disease before doing targeted treatment.