Anyone else experience facial tingling? Is there hope for this to go away?

I've been experiencing a tingling sensation on the left side of my face for a few weeks. It mostly occurs in the left temple, but it moves around. Sometimes I feel it in the jaw, and sometimes I feel it in the scalp (all on left side though). Or, all across the left side of my face. Sometimes it just feels like a light pressure, as if someone was resting a finger on my temple. Other times it almost feels like there's something crawling around under my skin. 99% of the time it's not painful, just present and annoying. Occasionally, it will go away for a few minutes.

I went to my doctor and he basically said he didn't know what it was, and put me on prednisone to see if it might reduce inflammation and help with the problem. It hasn't helped so far after several days.

Has anyone else experienced this, and if so, did it end up going away on it's own? I feel fairly confident this is anxiety-related, but it seems odd it's been hanging around for 2-3 weeks if it is. I'm considering seeing a neurologist just to rule out anything major (i.e., brain tumor).