For fever or local lumps after BSE vaccination, it is normal. If the temperature does not exceed 38.5℃, no medication is needed. You can drink more water to lower the body temperature and promote the metabolism of the body to produce waste to prevent the phenomenon of high fever. If no high temperature is generated within 24 hours after vaccination, even if the phenomenon of fever occurs, it is not more than 24 hours, and is generally not a particularly big problem. If for other symptoms, such as physical allergies, suffering from congenital diseases, or immune deficiencies, or epilepsy, or underdeveloped brain, these vaccinations should not be administered, especially the B encephalitis or epidemic encephalitis vaccines. If it is simply a low fever, there is no need to take interventions at this time, do not worry too much, observe in time, and go to the hospital for consultation and treatment if there is a problem.