Diarrhea accompanied by vomiting and fever can be caused by diseases such as gastrointestinal flu, or acute gastroenteritis. Patients need to promptly go to the hospital for fecal and blood tests to clarify the diagnosis. Common causes and treatment 1, gastrointestinal flu: gastrointestinal flu can appear nausea, vomiting, fever and diarrhea and other symptoms, in serious cases, can lead to electrolyte disorders in the body, immune system damage, etc., can be treated under the guidance of professional doctors taking nimesulide, pseudoephedrine, montelukast, ribavirin and other drugs; 2, acute gastroenteritis: mainly due to bacterial, viral infection, the onset of the more rapid, often accompanied by diarrhea The symptoms of diarrhea, nausea, vomiting. The cause can be determined through vomit, stool routine, and blood tests, and then medication can be used under the guidance of a medical professional. The main focus of acute gastroenteritis is on rehydration to prevent dehydration, and anti-inflammatory drugs such as amoxicillin and cephalosporin can be used as appropriate. Precautions In addition, patients also need to control their diet. In case of cold-type gastritis, a light, easily digestible diet such as congee and noodles should be consumed. Avoid eating cold, raw and cold foods, as well as fried, oily and other irritating foods. For patients with acute gastroenteritis, they need to temporarily abstain from drinking and eating, and after the condition is stabilized, they can eat a small amount of pasta until the disease is in remission before resuming a normal diet.