There are probably several things that need to be avoided or contraindicated after vaccination of young children. First, try not to give your baby a bath for a few days, so that you can avoid catching a cold, but also to protect the location of the vaccination needle eye, so that the local skin to avoid infection. The second is that the diet needs to be light and easy to digest, and babies who have added complementary foods should temporarily avoid fish, shrimp, crab, eggs, nuts and other high-protein foods. If you are breastfeeding, the mother also needs to avoid this type of food in the diet, to ensure that light, easy to digest, do not eat spicy food. Thirdly, try to give the baby warm water to ensure fluid intake, pay attention to the temperature and humidity of the baby’s room to avoid respiratory infections, and try to keep the body in a healthy state so that the vaccine will work better and produce enough antibodies. In addition, the key contraindication that needs to be emphasized is the need to avoid immunosuppressive drugs, such as hormones, after vaccination. Of course, when there are special circumstances that require emergency relief of the disease state, some drugs need to be used at the discretion of the doctor, but this is done under the control of the doctor.