Recently every afternoon nausea on diarrhea may be related to acute gastroenteritis, gastrointestinal dysfunction, etc., can be treated by rehydration, adjusting dietary structure, taking pivacurium bromide and other methods. 1. Acute gastroenteritis: if the patient ate unclean food, raw and cold food, irritating food, etc., it may induce acute gastroenteritis, resulting in nausea, diarrhea and other symptoms. At this time, we can follow the doctor’s instructions for anti-infection treatment, commonly used norfloxacin, etc., but also according to the patient’s degree of dehydration for rehydration therapy. 2. Gastrointestinal dysfunction: When patients suffer from gastrointestinal dysfunction, nausea and diarrhea may occur after eating certain intolerant foods. At this time, you need to improve your living habits, and choose pivoxyl bromide and other drugs for treatment according to your condition. When the symptoms of nausea and diarrhea every afternoon should be promptly consulted by a medical professional for diagnosis and treatment. The medication should follow the doctor’s instructions.