Fever is not a primary disease, it is a beneficial process to resist infection, but at the same time, fever can lead to many physical discomfort, especially high fever, which is more harmful and can cause children such as irritability, poor mental response, affect sleep, convulsions, increased heart rate and respiration, etc. Therefore, high fever should be handled actively. 1, first of all, when the child has a fever, the priority should be to reduce heat, methods include oral antipyretic drugs, physical cooling (warm water scrubbing, antipyretic paste), rectal administration, infusion treatment, etc.. The preferred oral approach, if the axillary temperature exceeds 38.5-39 degrees or if there is significant discomfort due to fever, it is recommended to use oral ibuprofen or acetaminophen, both of which are safe and effective antipyretic ingredients that can help your baby reduce fever quickly. 2.Find the cause of the fever. The most common causes of fever are nothing but bacterial and viral infections. When the child’s temperature comes down, you should find the specific cause of the fever. Focus on the child’s throat, whether there is redness and swelling of the throat, tonsillitis, herpes pharyngitis, stomatitis and so on. If it is not clear, the early hospital laboratory test blood routine, ultrasensitive c-reactive protein, etc. 3. Precautions. The child’s basal metabolism increases during the fever, water consumption increases, drink warm water in moderation. Eat as little cold, greasy, allergy-prone eggs, fish and shrimp as possible. If the child’s temperature does not drop below 38 degrees for one day, or if the fever does not improve for more than three days, or if febrile convulsions occur, or if it is accompanied by poor mental status, severe cough, diarrhea and other symptoms, seek medical attention in order to identify the cause and treat the symptoms.