My baby got her bcg at 6 months. Its been 2.5 months since she sad her vaccination. She developed this kind of bump at injection site. Wanted to ask is this normal?

A. sorry but we are not able to see the image but BCG vaccination can erupt after 2 months also BCG vaccination which is given at birth in the upper arm will form a swelling by one or maximum two months and then it will burst open and then pus will come out from it and after that it will become a scar mark. You have to take medical consultation if it days causing pain fever and discomfort to the child. Also if the pus discharge is increasing or aggravating again you have to meet the doctor and locally you can apply t bact cream