A 22 yo F presents to the ED with 2 days of L face pain. The pain is over the pre-auricular area. She denies uri sym or trauma. On exam, she has a fever. The remainder of her VS are fine and she appears well. She has tenderness over the L pre-auricular area without swelling or redness. Her TMs, ear canals, sinuses, teeth, and TMJ are all normal on exam.
What is the likely dx?
What shall we do in the ED?