You certainly could have a persistant infection. The oral surgeon should have put you on antibiotics for a couple of weeks after the surgery to make sure things cleared up. One of the questions would be is the lymph node sore or not. Is it fixated in place or movable? Some of these things are indicators, but a FNB will tell the tale for very little discomfort.

Brian, stage 4 oral cancer survivor. OCF Founder and Director. The first responsibility of a leader is to define reality. The last is to say thank you. In between, the leader is a servant.