Diarrhea is diarrhea. Children with diarrhea and fever can be seen in acute gastroenteritis, acute appendicitis and other conditions, what medication to take according to the cause of the decision, such as acute gastroenteritis can be oral montelukast and Saccharomyces boulardii and other medications. 1. Acute diarrhea disease: can be caused by viral or bacterial infections, clinical fever, diarrhea symptoms, some children may appear vomiting symptoms. Treatment can be oral intestinal mucosal protective agent (such as montelukast) and microecological agents (such as Saccharomyces boulardii or Clostridium typhimurium) and other drugs to alleviate diarrhea, but also oral rehydration salts can be taken orally to prevent or correct dehydration, for the fever> 38.5 ℃ children can be taken orally ibuprofen symptomatic antipyretic. Bacterial infections caused by oral antibacterial drugs, such as cefixime anti-infection treatment, such as viral infections, self-limiting, can not be special treatment. 2. Acute appendicitis: it is a common digestive system surgical disease in children, clinical symptoms can appear, often accompanied by abdominal pain, abdominal pain can show progressive aggravation, the above children need to pay attention to identify the disease, the treatment of this disease is generally poor oral medication, usually need intravenous infusion of antimicrobial drugs, such as cefuroxime to fight infection, and if necessary, need surgical treatment. The above drugs should be used under the guidance of a physician, it is recommended that the child’s diarrhea and fever actively seek medical attention, by the guidance of a specialist in the treatment.