Yes, and she just pushes back when I try to push it in.
How's she doing?
Try to keep her in a darkened area. If you haven't done so, feel inside the vent about an 1" or so - does it feel like an egg may be trying to come back out?
Also is she pooping?
If the tissue is really swollen then it may need to reduce in size to stay in. Keep the cream on the exposed tissue - hopefully the swelling will go down and be able to go back in.