Avoid taking a shower for the first six hours or so after the vaccination, because there are small needle holes on the skin after the vaccination, and showering may cause infection of the wound. However, if you do take a shower, it is not a big problem to dry the wound immediately afterwards. Dry your skin and hair as much as possible after bathing to avoid catching a cold. If you get a cold after bathing, you may have a low fever, and sometimes it is difficult to distinguish it from the adverse reaction after vaccination, so bathing is not a big problem. It is necessary to observe whether the baby has fever or wound infection.