If your baby has a high fever that doesn’t go away overnight after rabies vaccination, you can take oral antipyretic medication and combine it with physical hypothermia, and go to the hospital pediatrician in time if necessary. Rabies vaccine is a biological agent for the prevention of rabies, and individuals need to consider getting rabies vaccine in a timely manner after being scratched or bitten by an animal. For young babies, if the rabies vaccine causes high fever, you can use antipyretic medications, such as ibuprofen and acetaminophen, to treat the symptoms, as well as toweling the body to lower the temperature, and drinking plenty of water and eating a light diet. If necessary, consult a doctor, especially if the fever does not subside for more than 24 hours, or if the temperature is higher than 39.0℃, or if there are febrile convulsions, it is necessary to be treated under the guidance of a physician, and to determine whether there is a combination of other infections, so as to carry out targeted treatment. After the rabies vaccination must pay attention to closely observe the body changes, abnormalities can seek professional medical help in a timely manner, individuals should not be too panicked, the medication should follow the instructions of the physician and pharmacist, do not blindly take medication on their own.