The baby persistent fever 39 degrees of medication does not go away need to consult a doctor in a timely manner to clarify the cause of the disease, targeted treatment, caused by the baby persistent high fever of 39 degrees may be improper use of medication, did not find the cause of the disease, after taking medication care of the improper cause of the disease, you can comply with the doctor’s instructions to correctly apply the medication and physical way to improve. 1. improper use of medication: baby persistent fever of 39 degrees of medication does not go down may be the wrong medication, or the drug has passed the shelf life, need to follow the doctor’s instructions for the application of ibuprofen suspension drops and other treatment, combined with bacterial infections need to be with the taking of amoxicillin clavulanic acid potassium granules and other drugs to help fight infection. 2. did not find the cause: the baby continued to fever 39 degrees of medication does not go down, may not find the cause of the cause, such as the baby because of bacterial, viral infections caused by pneumonia, at this time, if you just eat fever medication, it is not easy to effectively reduce the fever. You need to consult a doctor in time to find the cause of the disease and to be treated. 3. Improper care: If the baby sleeps directly after taking the medicine, it is not conducive to heat dissipation, which can lead to the baby’s persistent fever of 39 degrees of medication does not go down, you can use a hot towel to wipe the body, to help dissipate heat. The baby’s persistent fever of 39 degrees does not return to the medicine can be seen in other causes, after the symptoms should be timely to the hospital.