The performance of fever in newborns is not specific, and the main manifestations are as follows: 1. shortness of breath or irregular breathing or even convulsions due to enhanced metabolism after fever; 2. elevated body temperature and chilled limbs; 3. incessant crying, drowsiness, poor mental status and anorexia. As a parent, if a child is found to have abnormalities compared to usual, the temperature should be taken scientifically. If a child is found to have a fever, it is not recommended to use antipyretics, but to go to the hospital for consultation and treatment in a timely manner. The specific medication should be combined with the clinical and guided by the doctor’s interview.