Poor girl.
I'd keep the tissue moist with ointment, oil, honey, sugar pack - whatever you have, don't let it dry out.
I would get some Calcium Citrate with D3 into her. This is a Turkey hen, so I assume she's an adult? Do you have a guestimate of how much she weighs? An average Chicken Hen, I would give 1 tablet daily, so I'm going to say to give your Gal 1 tablet twice a day.
Calcium can help with contractions and retention. It may also help her more easily expel and egg if another is on the way.
Is she able to poop? If so, that's good. You will probably need to clean her after she poops. Easy way instead of having to soak/give a bath each time is spray the area with a saline solution or diluted chlorhexidine to "spray rinse", the re-apply your ointment/oil etc to keep the tissue moist.
You do want her hydrated, so keep her drinking. I'd let her eat as normal if she's willing.
The damage may heal just fine, it will take some time. I can't stress enough to keep oil/ointment on the vent. Usually, urates may leak when there's damage like this, they will form a crusty/hardened white residue on the tissue. Keeping that moist too will help keep them from sticking so badly but will also promote them to fall away during the healing process.
Hopefully the damage is not too severe, and she recovers.
Keep us posted.