Strange sensation in face after a TN attack

I think I am going insane. I keep asking questions to which there seems to be no answers from doctors.

After my first initial TN attack in which I thankfully got diagnosed very quickly and thanks to private medical insurance I had an MRI scan which seems to have come back normal. Thankfully the agonising pain has subsided, but I am left with a strange sensation in my face, exactly where the TN was. Is this normal? It doesn't seem to be getting any worse or better and I can live with it, but it is annoying. Doctors are saying things like residual pain after the TN but are not sure.

Has anyone else experienced this? Does it eventually go? Any help would be appreciated.