Baby vaccination fever should be appropriate rehydration, medication to reduce temperature, find the cause, symptomatic treatment. 1. Appropriate rehydration: baby vaccination fever is easy to lose too much water, it is recommended to actively replenish water, you can drink a small amount of water, to prevent internal environmental disorders, reduce dehydration. 2. medication to reduce temperature: baby vaccination fever, if the temperature exceeds 38.5 ℃, under the guidance of the doctor to take medication to reduce temperature, such as ibuprofen suspension, acetaminophen and other drugs, with warm water swabbing can also reduce the body temperature. 3. Find the cause: baby vaccination fever, body temperature is relatively high and the course of the disease is relatively long, to go to the hospital to improve the blood routine, C-reactive protein and other tests, to understand is the vaccine caused by adverse reactions, or bacterial or viral infections caused by high fever. 4. Symptomatic treatment: If it is a bacterial or viral infection, it can be treated with antibacterial drugs and antiviral drugs under the guidance of a doctor, such as cefixime granules and antiviral oral solution, which will help to reduce the body temperature after the condition is controlled. Baby vaccination fever, should go to the hospital in time.