She will be fine! Ask them to give her "giggle juice" first (versaid). If they give her gas to breathe, then she will be "out" when they put her IV in - ask for that. That way she won't feel that IV prick, which does hurt!
Make sure that you get the pain meds in her as soon as possible. And, Robyn, keep getting those pain meds in her. Write down exactly when and set a timer or alarm for when she can have them again. Wake her up to give them to her. You do NOT want those pain meds to no longer be in her system, because THAT is when she will hit the wall.
If she is in a lot of pain regardless of the meds, call and tell them exactly what you are doing, and then tell them that she needs something stronger. It is a much harder recovery without good pain management.
Do you have plenty of soft and cold things for her already on hand? A cold, wet throat is better than a scratchy dry one.
You'll both get through this - I promise.
Dawn