The baby fever to 39 ℃ can take a warm bath to cool down, but the time should not be too long, and the effect of cooling may not be obvious, it is recommended to consult a doctor in time to clarify the cause of the disease, standardized treatment. Baby fever to 39 ℃, if the baby’s mental state is still good, you can try to briefly wash warm water bath to help the baby cool down, but the effect is not obvious. Body temperature of 39 ℃ already belongs to high fever, it is recommended that parents can follow the doctor’s instructions to the child oral ibuprofen suspension, acetaminophen and other drugs to reduce fever. If the baby’s fever persists or the mental state is poor, parents are advised to bring their children to the hospital in order to clarify the cause of the disease and follow the doctor’s instructions for treatment.