SqueakyClean
The steroid shot was a one-time emergency intervention, sounds like. I would suggest that you focus on curing her allergy problems, which are why she got the shot in the first place. Liver cleansing,
Water Cure , raw local honey, green tea, etc. I don't think steroids are the worst thing in the world (I am not saying they are healthy), not as bad as
Antibiotics , for example. Don't freak out, in other words. I would recommend eating raw fermented vegetables like sauerkraut, kim chi, etc. and avoiding all dairy products for several weeks.
Perhaps another curezoner has specific advice regarding the steroid shot. I advise learning about and dealing with the allergy problem and its underlying problems (particularly the LIVER).