Can forms of neuralgia or nerve pain happen post nose surgery?

I had surgery on my nose 4 months ago (cosmetic and functional). At 5 weeks out I had facial burning (nose and forehead) which moved to scalp, top of my head, and back of my head. What did my surgeon damage? Could this be a nerve? How do I treat it? My derm seems to think the face is rosacea. My question is to those of you who have performed thousands of surgeries especially the atypical cases. I'm trying to get answers from my surgeon, but he is rather aloof about the whole thing.