For the newborn fever 38 ℃, according to the severity of the disease can choose different treatment methods, as follows: 1, home observation: if the newborn temperature at 38 ℃, the mental state is still good, there is no obvious crying and restlessness as well as a significant drop in the amount of milk and so on, you can take at home to observe and drink more water, and can be carried out physical hypothermia treatment, physical hypothermia can be wiped forehead as well as Neck, armpits and other parts of the body; 2, to the hospital: if the newborn fever at 38 ℃, but the mental state is very poor, the amount of milk significantly decreased, and the amount of urine is also very small. This is often due to severe infections, you need to go to the hospital to do the appropriate laboratory tests, such as routine blood tests, if the white blood cells are very high, to apply cephalosporin and other anti-infective treatment in a timely manner.