After the baby has been vaccinated and bathed, it is necessary to pay attention to keep the eye of the needle dry, closely observe the skin condition near the eye of the needle, pay attention to warmth, and pay attention to the whole body condition. 1. Keep the eye of the needle dry: the baby should not take a bath 1~2 days after the vaccine, mainly to prevent pathogenic microorganisms enter the body through the skin breaks leading to infection, but if you have already taken a bath, you need to pay attention to keep the skin at the eye of the needle as dry as possible afterward. 2. Closely observe the skin at the eye of the needle: Observe the skin around the eye of the needle for redness, swelling, ulceration, pus, etc., and closely observe the baby’s signs. 3. Pay attention to keep warm: babies are easy to get cold and flu after taking a bath, so you should pay attention to keep warm. 4. Pay attention to the whole body condition: pay attention to the body temperature, pay attention to whether there is fever or not, if there is fever should consult the doctor in time.