Thanks for your feedback, Jean. Unfortunately, taking her to the vet is not an option. The closest one is over 40 miles, and EXTREMELY expensive. I recently took a chicken with a severe crossbeak there to be worked on, and it cost me almost $150. I just do not have that kind of money, right on the heels of the crossbeak treatment.
She was doing better last night; I even had trouble feeding her because she was fighting so much. She began to eat a little on her own, too. But this morning, she appears to have backslid a bit. She's still sneezing, and doesn't appear to be interested in food. I'll post to Dr. Brown's site when I get to work, and hopefully he can give some words of advice. I'll post to let everyone know what he says.