cyfarian
Chirping

I put a tiny safety hole in her egg because when candled she appeared malpositioned. I noticed that the incubator smelled horribly afterwards. Later I could see that she internally pipped. After a 30 hours with no attempt to external pip, I made an external pip where here beak was. After 24 hours with no attempt to try to zip, I opened it up slightly where her beak was and saw feet. So I slowly fully assisted her hatch. I have done a dozen or so hatch assists, so I feel pretty comfortable with them. All the blood has absorbed, so I looked to see what the yolk situation was. While I was checking, the shell and membrane slipped off as she was no longer attached to the membrane. There was still some sac outside her navel, but because of the smell in the incubator, I was worried about infection. Her naval doesn't smell at all. I disinfected it with iodine (which it why it looks so dark).
I disinfected another incubator, fired it up and put her in a container with paper. I also had her drink some warm water with honey and ACV, and some water with electrolytes and probiotics.
I waited several hours, but it doesn't appear like the yolk is absorbing anymore. Her abdomen seems pretty full. I dipped q-tip in iodine and tried to push it in. I was able to get it in, but as soon as I removed the q tips, it popped right back out. I was worried it would dry out, so I also put coconut oil on the yolk sac (since it has antibacterial properties and is lubricating). She was alternating between resting and peeping. I finally got some terramycin antibiotic cream and applied it to the yolk sac.
It has been about 12 hours since I fully assisted her hatch. She seems much more lethargic now. She has no interest in food, and I have been placing her beak in the warm drinking solutions every couple of hours.
I have seen some suggest tying off the sac with dental floss, and some say to leave it alone. Can you please advise what usually happens in either situation? How long does it take to fall off on its own? Or, if I tie it off, do I cut it or just let it naturally shrivel up and fall off?
Is there anything else that I haven't yet done that will help her? Should she be on a damp towel or will that just chill her? I want to do everything I can to give her a fighting chance.
Here is a quick clip of her.