If the eye area of the vaccination is red and swollen, it is mostly caused by local infection or reaction to the vaccination. In this case, the following measures can be used: first, disinfection with iodophor and alcohol. If the redness and swelling of the eye is not very obvious, the child can be disinfected with iodophor and alcohol every day. Most of them will get better in 3-5 days. Secondly, the child should be given an antibiotic ointment, such as Bactrim, which can effectively prevent the redness and swelling of the needle eye caused by bacterial infection, improve the child’s symptoms, and prevent the child from becoming septic or even feverish due to the infection at the inoculation site.