The normal body temperature of infants is 36°C-37.3°C. A body temperature of 38.5°C is considered feverish and is a case of moderate to high fever. It is necessary to give antipyretic drugs and anti-infective drugs for treatment. You can take ibuprofen, intra-anal acetaminophen fever suppositories for treatment, and clear bacterial infection with anti-infection treatment such as amoxicillin granules. The child’s abdomen, armpits, back and other parts of the body should be scrubbed with warm water to help reduce the fever. It is also important to note that if your child has a high fever that does not go away, you need to go to the hospital for a routine blood test to clarify the type of bacterial infection and give antibacterial agents intravenously for anti-infection and antipyretic treatment in a timely manner. During the fever period, pay attention to closely observe whether the child is conscious, convulsions and other symptoms of convulsions. Once convulsions are detected, sedative and anti-convulsive drugs should be given in time to control febrile convulsions.