I had it about 10 years ago. Really sucked! My Dr said you need to treat it with steroids within the first few days or so or it might not completely go away. You might want to double check on that for yourself. Maybe get a second opinion? Unless any Pinside physicians can weigh in?
In any case, after a week of steroids, it pretty much went away. Looked for all the world like I had a stroke. It was a very unhappy time in my life! I can appreciate the difficulties stroke victims have much more after that experience!

Sounds like you're good to go!

Funny you should mention that. Mine started the same night (or the next day I can't remember) after I was at my dentist for a root canal. My Dentist played dumb when I called him, but my regular Dr said it can be caused by dental work, stress, or many other things, but that the earlier it is treated, the better the chances for it completely going away.

That's it!!! Totally sucks! Fortunately, you should see some improvement after a few days on the steroids.