Thanks for the kind words, ladies! 
No surgery/excision yet. She felt that it was not infected but just inflammation that wasn't healing, so she gave me a cortisone shot right in the sore. Owie!
But, it only hurt while the shot was going in, and afterwards, nothing at all. She said it should be much better in a few days, so I hope she's right!
If, after the inflammation goes down, there is a "cyst wall" left (she didn't think so, but it's a possibility; it was too hard to tell with the inflammation), then it might have to be excised, but this is the first step, and hopefully the only one.
I'll keep y'all posted!
Emily
P.S. FBG, my new fork hasn't arrived yet, and I'm getting a wee bit nervous -- the seller has great feedback and well over 200 positives, but it was supposed to come priority mail, so should have been here by Monday or Tuesday. I sent him an email last night and haven't heard back, so I sure hope he's just away and "the fork's in the mail". I sure would hate if this transaction went sour as it was a lot more $$ than the small-ticket items I usually buy on ebay!
Emily
2011 Jamis Dakar XC "Toto" - Selle Italia Ldy Gel Flow
2007 Trek Pilot 5.0 WSD "Gloria" - Selle Italia Diva Gel Flow
2004 Bike Friday Petite Pocket Crusoe - Selle Italia Diva Gel Flow