Children are more likely to have a fever after receiving the BSE vaccine. However, the fever is usually not very high, and the fever does not last for a long time, and the baby will not have any other obvious abnormalities except for the fever. Individual babies may have a very high temperature, for example, 38 degrees or more, accompanied by poor mental health and cold hands and feet, so you can use antipyretic drugs to temporarily reduce fever, preferably acetaminophen. In addition, pay attention to drink more water, drink water regularly. If the baby’s body temperature is not very high, still mainly drink water, their own adjustment will gradually restore the body temperature to normal. If the fever lasts for more than 3 days, or if the baby has other obvious abnormal symptoms in addition to the fever, you need to promptly consult a pediatrician to determine whether there are other diseases. If so, promptly deal with the primary disease.