How is she tonight?She's about the same. She did poop more overnight. I cleaned her up some more. She's still pretty feisty which gives me hope.
I'd continue to work on the vent, get the calcium into her. If quite a bit of the material has come off, then start trying to push the exposed tissue back inside once you clean her up. This may be uncomfortable for her and the tissue may not stay in and that's o.k. Coat it with your ointments, oils, etc. and try again the next session. Often the tissue will not stay in until inflammation is reduced, this takes time.
As for antibiotics. I've never used them for prolapses. Can't say if they are helpful or not in a situation like this. The only time I would give abx is when there's clear indication of infection - you should be able to smell the infection. It's not a bad idea to have a broad spectrum antibiotic like Amoxicillin on hand for emergencies. Meds can be hard to source at times, sometimes they are backordered or not available and most have to now be ordered online, so you have to wait several days.