Hi, My child is 2 months old: He had injection at 6 weeks. There is still a black mark and some swelling at the injection site. what i do?

A. after painful vaccines administration they can cause swelling in the limbs which can continue for more than two months also. it does not require zany treatment and should go away on its own. after vaccination immediately you should start applying ice as well as thrombophob gel to prevent such swellings from persisting