Baby fever to 39 degrees can sleep well, may be due to the child’s ability to tolerate fever than adults, so the fever to 39 degrees will not have too much abnormal discomfort, so sleep better. However, it is also possible that the child is already in a state of drowsiness, and parents should pat the baby awake or shake him or her up if he or she does not respond to gentle calls. Either way, if there is repeated high fever or high fever does not go away, you need to go to the hospital in time, improve blood routine and other comprehensive physical examination, find the cause of the disease, so as not to delay the condition, resulting in more serious consequences. Heat treatment, treatment methods are as follows: 1, medication: you can take ibuprofen suspension or acetaminophen under the guidance of a doctor; 2, physical cooling: you can use a warm towel to wipe the baby’s neck, groin, limbs and forehead, you can also use the fever patch on the baby’s forehead to lower the temperature. In addition to long-term high fever state, can lead to dehydration of the baby, at this time must give the baby drink warm water, promote urination, and prevent the body from losing more water. At the same time, the air in the room to keep circulating, the room temperature is maintained at about 25-27 degrees.