Celexa / citalopram Rash?!?

I have been on generic Celexa 20 mg for 10 days now. On day 7 I started developing a rash on my back and chest. Called my pdoc, and the nurse there told me it probably wasn't a reaction to the medicine, and to take Benadryl and call her back if it didn't work. Well, Benadryl provides some relief when I take it, but the rash isn't going away, and seems to be spreading. Has anyone else here had a similar reaction to Celexa? Called to tell her that the rash wasn't going away, and she's out of the office until Monday, so I guess that means I'll just be riding it out this weekend. :-(

When I can't reach my doctor, I go to my pharmacy and ask the pharmacist. They are very knowledgeable.