Infant vaccination place red and swollen, if the redness and swelling is small, do not need special treatment; if the redness and swelling is large, you can carry out local care; if the redness and swelling is serious and the baby has pain and other adverse reactions, should be timely to the hospital. 1. Smaller redness and swelling: If the redness and swelling are small, no special treatment is needed, which is a common reaction after vaccination. Parents need to take good care of the baby, prohibit the baby from scratching the red and swollen places, under normal circumstances, the redness and swelling can subside after 2-3 days. 2. Large redness and swelling: If the redness and swelling is large, parents need to pay attention to strengthen the local care, local to ensure that dry, try to avoid water, in order to ensure that the redness and swelling can be recovered as soon as possible, and at the same time can be applied to 70% of alcohol or the application of complex iodine for local disinfection, in order to avoid local infection. 3. Serious redness and swelling: if the redness and swelling is serious and the baby has pain, local skin temperature and other adverse reactions, the baby should be taken to the hospital in a timely manner, may be the local infection or pus, need to be given anti-inflammatory, pus drainage treatment. If the infant is not feeling well, the infant should be taken to the hospital in time to avoid delaying the condition.