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She is lovely.  Do you have her inside so she can be warmed?  I see you mentioned that she has frost on her beak?  If you can't bring her in, can you place a heating pad under her?
I agree, that a round of antibiotics may be helpful - so have so many suggestions, sometimes it's hard to weed through them.  Penicillin, Amoxicillin or even Tylan50 would be helpful.  
@casportpony or 
@Eggcessive may want to chime in on which one.  Amoxicillin would need to be ordered, Penicillin and Tylan is usually found at TSC.
I realize you mentioned that you have Cefdinar, but I'm not familiar enough to advise it's use - but again Kim/Kathy may have that info.
@BantyChooks it would be great if you would write an article
I agree that the warning maybe should be more clear, but...this is nothing against the OP because who would think about a light bulb causing this type of problems.  I don't want her to be offended at all, but it's a lesson to us to read labels when using a product (for ourselves, birds and pets)  I think if we read labels, we'd never buy anything again.  So... OP did post the package of the bulb used - there was a warning