Reflux, i.e., spitting up acidic water, is mainly considered to be caused by the reflux of gastric contents, and can be given acid-suppressing drugs and gastric mucous membrane protection drugs under the guidance of physicians. Reflux of yellow water is mainly considered to be caused by reflux esophagitis, chronic gastritis, etc. Patients may also experience heartburn, nausea, stomach pain, vomiting, retrosternal pain and other symptoms. Omeprazole, famotidine, aluminum sulfate, aluminum hydroxide and other drugs can be considered for treatment, and metoclopramide can also be used for antiemetic purposes if accompanied by vomiting. The specific use of medication must follow the doctor’s instructions, it is recommended that under the guidance of a professional doctor for standardized treatment, do not arbitrarily use drugs to avoid causing serious side effects and adverse reactions.