An upset stomach accompanied by fever is mostly due to inflammation caused by the digestive tract, such as enteritis, cholecystitis, pancreatitis and other diseases, which can be checked by abdominal ultrasound and blood tests. Enteritis is usually accompanied by diarrhea, bowel sounds and other symptoms. There are intestinal infections can be treated with oral haloperidol or safranin, and pay attention to a light diet and drink more water. If it is cholecystitis, ultrasonography on an empty stomach can also be diagnostic. Eat less greasy food, you can use anti-inflammatory choleretic tablets and other proprietary Chinese medicines to regulate, with antibiotic treatment. Pancreatitis disease should be symptomatic treatment mainly, all should pay attention to dietary control. If the body temperature exceeds 38.5 ℃, need to use antipyretic drugs symptomatic treatment, low fever can be physical cooling. According to the clinical symptoms of the cause of the treatment, so that the condition can be effectively alleviated.