Always take cold medicine after three days after the vaccination. It is better not to take any medicine for three days before and three days after the vaccination. And it is better not to vaccinate your baby when he is sick to avoid other reactions. After three days, you can give your baby aminophenanthramine pellets together with anti-inflammatory drugs to treat your baby’s cold. It is important to let your baby drink more water during the cold because water will speed up the elimination of toxins from the body. During the cold, you must pay attention to whether there is a fever and take your baby’s temperature at any time. Go to the hospital for examination and use the right medicine according to the doctor’s advice and opinion, do not blindly give him the medicine by yourself. During the cold period, you should eat a light diet and give your baby more easily digestible food, such as white rice porridge or cornmeal paste, etc.