Seven-year-old children with stomach pain, vomiting, fever is often caused by acute gastroenteritis is common, this time to the child to adopt the method of fasting water, fasting can effectively relieve the symptoms of vomiting. For stomach pain, you need to rub the child’s stomach clockwise; or use a warm hot water bag to give the child a hot compress, can also relieve the symptoms of stomach pain. If there is an elevation of blood counts, the child must be given antibiotics for anti-inflammatory treatment at the same time, in order to relieve the symptoms of stomach pain, vomiting and fever, such as cephalosporins, if not allergic to cephalosporins, you can use pediatric cephalexin granules for anti-inflammatory treatment. However, an abdominal ultrasound is also necessary to rule out mesenteric lymphadenitis or appendicitis, or other diseases causing stomach pain, vomiting and fever. If appendicitis is not treated effectively, perforation can easily occur, leading to severe peritonitis, which is very dangerous, so an abdominal ultrasound or CT scan is necessary.