If you do not have an oyster shell, you can find it usually the same place you buy your chicken feed. You can also feed her egg-shells for calcium along with the milk. Crush up the egg-shells and put them where she can access it freely. It doesn't need to be alot, just have some available at all times, or until you get oyster shell.

I haven't had to deal with this yet, so my advice runs along with Jocelyn's. Keep her warm, well fed, as much oyster/egg shell she wants, and free access to water. Keep her in an area out of "traffic" in the house, so she won't stress as much.

I hope someone has better advice than myself. I hope it all works out for the best.

Fayetteville, NC