3 years old child hit defence needle how should have a fever 38 degrees to do in the evening

Three-year-old children hit epidemic prevention needle night fever 38 degrees Celsius is a normal phenomenon, mainly because the vaccine is inactivated virus, baby body resistance is relatively poor, will appear rejection reaction, can use physical cooling method to baby cooling, body temperature exceeds 38.5 degrees Celsius, timely go to the hospital to follow the doctor's advice to eat cooling drug treatment.