I had some stubborn fat or maybe scar tissue around my belly button after lipo? (photo)

The doctor put a Kenalog shot in it. After about two weeks at the spot was perfect perfectly flat then a couple weeks later it was dented And the skin turned purplish.Fast-forward 2/3 months later now the area is burning I'm not sure if it caused any damage to the underlying tissue? There was also a hernia with mesh underneath. The hernia is fine.Im not sure what kind of dr.to see now. My plastic surgeon doesn't think the burning could be from the shot. So I'm not sure where it's coming from.