In daily life, moms often encounter babies with fever. Mothers are often at a loss when faced with a fever. Fever occurs in many diseases, but it is most common in infectious diseases. When encountering fever, the first thing to do is to observe the characteristics of the temperature change and what accompanying symptoms are present in order to accurately describe them to the doctor. Of course, the first thing to do is to learn how to reduce fever. 1, if the body temperature is not higher than 38.5 ℃, generally take physical cooling methods to reduce fever. Commonly used physical cooling methods are: reduce the child’s clothing, is conducive to the baby’s heat dissipation, to prevent the occurrence of febrile convulsions; give the baby more water, is conducive to sweating and heat dissipation; you can use warm water to the baby bath, is conducive to heat dissipation. If the temperature exceeds 38.5 ℃, it is recommended to apply antipyretics, babies under 6 months can use acetaminophen, babies over 6 months can use acetaminophen and ibuprofen (choose one can be), the dosage form has oral and suppository. Generally require 6 hours 1 time, the minimum interval can not be less than 4 hours. 2, secondly, to clarify the cause of fever, infants are most common viral infections and bacterial infections caused by fever, influenza can be used oseltamivir phosphate, other viruses according to the circumstances of the use of other drugs, bacterial infections can be related to the examination, the doctor for empirical treatment or according to the results of the examination of the appropriate antibiotic treatment. If your baby has recurrent high fever or ultra-high fever, it is recommended that you take your baby to the hospital for the necessary tests to clarify the specifics of the infection. According to the doctor’s judgment, medication should be given to prevent the occurrence of febrile convulsions.