The following measures can be used to deal with a child’s fever after vaccination: 1. Provide good care: In the case of a child’s fever, if the temperature is not particularly high, let the child rest appropriately and more often, which is good for physical strength as well as immunity relief. In addition, give the child more warm water to help correct the dehydration caused by fever. 2. Timely application of antipyretic drugs: If the axillary temperature of the child exceeds 38.5℃ after vaccination, and the child’s mental state is not good, with symptoms of body aches and discomfort, it should be treated with antipyretic drugs such as ibuprofen or acetaminophen, which can mostly have a good antipyretic effect. Because these two drugs are relatively safe, the effect of reducing fever is also relatively good; 3, timely hospital consultation: if the child’s fever is relatively high, and will be accompanied by very obvious vaccine reactions, such as the child after the BCG vaccination, there are arms pus serious, local nodules are particularly obvious, and even a lot of pus outflow. If a child has a high fever, drowsiness, or even jet vomiting after receiving the flu vaccine, it is important to take the child to the hospital in a timely manner to avoid delays and adverse consequences.