Babies are prone to fever after vaccination, and their mental state is usually better. If the body temperature is lower than 38.5℃, parents can give physical cooling to achieve the effect of reducing fever, you can give the baby to drink more warm water, drink warm water diligently, the temperature can be reduced to normal, you can also give the baby to paste anti-fever paste, paste on the forehead, neck and limbs, do not paste to the vaccination place can, also can use warm water to wipe the baby repeatedly and constantly, can play the role of reducing fever, wipe with warm water When wiping with warm water, don’t rub it on the vaccination site to avoid the phenomenon of infection. If the baby’s temperature does not go down to normal after physical cooling, but increases instead, or if the baby’s fever reaches 39℃ or higher after vaccination, the baby should be taken to the hospital to clarify whether the fever is caused by the vaccine or by a combination of other conditions under the doctor’s supervision, and further medication should be given under the doctor’s guidance.