Dear Kathy,

Common sense would tend to lead us to Bryonia--which is < movement and > cold applications; but that said, I'm intrigued by the remedy Spigelia, which is a remedy for left-sided facial neuralgia with severe pains.

Another remedy with facial neuralgia > cold applications, is Coffea.

Since you may not have spigelia, why not start with bryonia and try the other two if Bryonia doesn't work?

Keep us informed,
Snoopy