The child 39.5 degrees belongs to high fever, need to immediately lower the temperature treatment, at the same time should find the cause of high fever to give targeted treatment. If the fever persists, febrile convulsions can be dangerous. The child 39.5 degrees belongs to high fever, if you do not take measures, continued high fever is very dangerous. Because of the imperfect development of the child’s nervous system, high fever can make the brain abnormal discharge activity, that is, febrile convulsions, may lead to brain damage. High fever can also cause tachycardia, apnea, and even death. Children 39.5 degrees, you need to use antipyretic medication under the guidance of a physician, such as ibuprofen, acetaminophen, etc., the interval between medication needs to be greater than 4 to 6 hours. At the same time need to drink more warm water can promote the body’s metabolism, reduce water loss; towel wet forehead or use fever stickers to assist in reducing fever. The cause of the fever should also be clarified, such as viral infections can be treated with drugs such as antiviral oral solution, and bacterial infections need to be treated with antibiotics such as ceftriaxone. The child 39.5 degrees is recommended to seek medical treatment and treatment, medication should follow the doctor’s instructions.