#AskTheExpert my son is 4 and a half month old now. my mom pook BCG vaccine area with needle and pressed out puss and blood from that area when he was 3 months. even now some times puss is forming in that area. what can be done for it please suggest

A. In most cases, the BCG causes a reaction at the injection site, usually between 2-8 weeks after the vaccination. A small red lump, often containing sticky fluid (pus), may develop. It is quite normal for the area to ooze pus. This will eventually crust over and a scab will form which will then fall off leaving a scar.