Fever from polio vaccination is an adverse reaction that occurs after vaccination. This is because the vaccine itself is a virus that has been reduced in activity. After vaccination, fever may occur during the process of immunization. If the body temperature is lower than 38℃, physical cooling can be given in a timely manner. You can use antipyretic patches and warm water baths to reduce fever, and more hot water baths can also help to dissipate heat. If the physical temperature does not go down and exceeds 38.5°C, you can also take acetaminophen suspension to reduce the fever for treatment. During the fever, try not to overdress the child, pay attention to the fresh air in the room, and observe the child’s mental condition.