Children’s fever after rabies vaccination is mostly caused by the body’s immune response, which can be relieved by hydration, physical cooling, and the use of antipyretics. 1. Supplemental water: there will be a large amount of water evaporation after fever, in the fever must let the children drink more water, replenish enough water. In addition, drinking more water will also increase the amount of urine, through a large number of urination can also be the body of heat to give out. 2. Physical cooling: If the fever temperature is below 38 degrees 5, it is recommended to lower the temperature through physical methods, such as taking a warm bath, using warm towels to wipe the forehead, armpits, thighs and other parts of the body. 3. Anti-fever medication: If the fever after rabies vaccination is higher than 38 degrees 5, you can use anti-fever medication, such as acetaminophen or ibuprofen, etc. The above medication should be used under doctor’s supervision. All of the above medications should be used under the guidance of a doctor. If a child’s fever is severe or does not improve after rabies vaccination, it is recommended that the child go to the hospital in a timely manner.