strange feeling on right side of face after biopsy

[C-H__0]

  On Dec 7th I had a stereotactic biopsy of a mass on my left temporal lobe.
  I had a lot of swelling of my face which is nearly gone now. However, I do
  have a strange feeling on the right side of my face now, that I can best
  describe as the feeling you get after you've had a tooth filled at the dentist
  and the novacain has begun to wear off. It is centered mostly in my cheek
  muscle and feels sort of like muscle fatigue. It's not numb, it just feels
  thick/heavy and like it is fatigued from constant contraction. The muscle
  itself is *not* contracting, it just feels like it is.
  The left side of my face feels perfectly normal. Could this possibly be a
  temporary side effect of the surgery?
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Dear C H,
Numbness in the face should not be a complication of a temporal lobe biopsy.  The trigeminal nerve, which supplies sensation to the face, runs on the deep and medial side of the temporal lobe and shouldn't be affected by a routine biopsy.
Speak to your surgeon as to whether there were any unusual circumstances with your biopsy.  If not, it is likely a temporary ailment that will abate with time.
Good luck.