After your baby has been vaccinated, it is not advisable to bathe your baby within 24 hours, especially the localized area of vaccination, to avoid localized infection. After vaccination, the baby should be observed at the vaccination site for 15-30 minutes, and go home again if there is no reaction, so as to avoid the occurrence of abnormal reaction without timely treatment. Keep the local skin clean and hygienic, and change underwear and underwear frequently. Prohibit babies from scratching the vaccination site with their hands to avoid local infection or aggravated reaction. In case the skin is scratched by the baby, topical medication can be used, such as gentamycin ophthalmic ointment, band-aid, and if there is localized purulent secretion outflow, it should be timely to the surgical clinic. As far as possible, let the baby drink more water, let the baby rest more, do not do strenuous activities, as far as possible to carry out more quiet activities, let the baby sit and read books, read stories to the baby. After the injection, parents should also pay close attention to the baby’s various physical conditions, because some babies may be due to physical reasons, after the injection body will appear fever, some even appear rash, the emergence of these conditions, timely examination and treatment.