The phenomenon of fever after rabies vaccination may be seen in two situations: First, the fever that appears is not directly related to the rabies vaccination because the rabies vaccination has been given at the time of the vaccination, and the fever caused by the cold may be accompanied by sneezing and runny nose. Second, after the rabies vaccine, the human immune system has an allergic reaction to the vaccine, sometimes it will be manifested as fever, but this fever usually does not last long, if the body temperature exceeds 38.5 ℃, you can take some appropriate antipyretic and analgesic drugs such as acetaminophen, the general body temperature will gradually drop to normal levels. Also pay attention to drink more water and observe whether there is any local inflammatory reaction such as redness, swelling, pain, etc. if the temperature does not go down and there is local redness and swelling, you need to go to the hospital in time.