If symptoms such as nausea, vomiting, dizziness and stomach discomfort occur, it is mostly considered as acute gastroenteritis. If the symptoms are accompanied by abdominal pain and diarrhea, oral antidiarrheal drugs such as montelukast and diarrhea laxative can be taken, and attention should be paid to hydration and adequate rest. In addition, patients with previous stomach diseases, such as peptic ulcer, duodenal lesion, or gastric lesion, can also cause nausea and vomiting. If symptoms continue to occur repeatedly, it is recommended to visit a gastroenterologist for relevant tests to further clarify the diagnosis.