After vaccination, most people's fever symptoms appear within 24 hours after vaccination, the fever temperature does not exceed 38℃, the duration is about 1-2 days, and then they can subside by themselves. During this period, you can stay in bed, strengthen observation, drink more warm water, and properly cool down physically, such as warm water bath and ice compress. If the body temperature is above 38.5℃, antipyretic and analgesic drugs such as ibuprofen and acetaminophen can be used. If you have a fever for more than three days or have serious symptoms such as high fever and urticaria, you should go to the hospital in time.

It is normal to have fever symptoms after vaccination, because vaccination is a foreign body to the recipient, and vaccination is actually an infection process, which will have some reactions more or less. The most common symptom is fever, which may occur in both adults and children. Different kinds of vaccines, different individuals' health status and nutritional status have different reactions after vaccination, so you don't need to be too nervous. Just follow the instructions in time.