In case of runny nose, cough, chills, fever, general malaise, etc., the vaccination should not be given, and it is safer to stop using the medicine for about 1 week to give the vaccination. When your baby is sick, you can’t give the vaccination, you need to wait for the drug in your body to be eliminated before giving the vaccination, otherwise it may aggravate your baby’s condition or the vaccination will not work accordingly. After the vaccination, you should observe your baby in the hospital for half an hour to make sure everything is normal. Some people may experience side effects such as low fever and skin rash, which can usually return to normal on their own. Don’t eat for half an hour after the injection to avoid discomfort and nausea and vomiting, which may lead to accidental aspiration. Don’t let your baby get wet after the injection, and don’t bathe your baby for two days to avoid infection at the needle hole. Many small babies will have fever after the vaccination, so you should always observe the changes in your baby’s body.