There are many ways to reduce the fever caused by diarrhea in children. We need to find the cause of diarrhea in children first, and check the blood and stool routines of children. If you are not allergic, you can give your child oral cefixime granules or cefadroxil granules for anti-inflammatory treatment. For fever, if the body temperature is above 38.5℃, oral ibuprofen suspension or acetaminophen suspension can be given to reduce fever. If the body temperature is below 38.5℃, physical cooling can be used to reduce fever, such as warm water bath or hot water bath. If the diarrhea is serious and the number of diarrhea is greater than 3-4 times a day, the child should be given oral SMC to stop the diarrhea and oral rehydration salts to prevent dehydration.