Babies are not recommended to take a bath immediately after vaccination, it is recommended to take a bath 24 hours after vaccination, because the wound has completely healed at this time. It is not recommended to take a bath immediately after the baby has received the vaccination, because at this time the needle hole has not completely healed, and it is easy to get infected with bacteria if it comes into contact with water too soon. Infection of the injection site is not conducive to recovery and affects the effectiveness of the vaccination. It is recommended to bathe your child 24 hours after vaccination. In addition, after vaccination, we should pay attention to observe whether there is fever, whether there is redness, swelling, hardness and other accompanying symptoms at the vaccination site, if there is any abnormality, it is recommended to go to the hospital in a timely manner, and to carry out appropriate treatment under the guidance of the doctor.