That's so sad. She was so sick, though, really on the brink of death from the start of the weekend. She sure seemed to be willing to hang in there and fight to live. You deserve a lot of credit for fighting so hard for her.
Good. That ought to get her through the night. In the morning, check her crop to see if it's empty. If yeast is starting up in the crop, we will need to treat that or it will be like a rear attack and could bring her down.
When you tempt her with some food, see if you can get a probiotic down...
Mix up a fourth of a cup of warm water with about half a teaspoon of sugar and a pinch of salt and baking soda, and syringe it into her beak as I showed you earlier. Stick some vitamins in the water, too.
How about fluids? Is she continuing to drink? What does her poop look like? Can you post more photos? I'd like to see one of her.
She was on the brink last night, a lot due to being out of physical resources. Her glucose is likely low once again, and she may be becoming dehydrated. At some...
Count it as a big win that she made it through the night. She isn't going to let us down now. The Tylan is helping her to hold on. Keep up what you're doing, and continue to tempt her with food. Try fruit cocktail, grated carrot, chopped up canned beets, egg, yogurt, even chicken soup including...
I think starting her on the Tylan will help her hold on. Are you able to get any fluids into her? If she hasn't had fluids for a while, her chemistry is going to be failing and the antibiotic won't be able to work. If you can, mix up some warm sugar water and see if she will drink it. If you...
Tylan is better than nothing, although it's more effective on bacteria in the respiratory tract. Let us know if there's any improvement on it.
What you can do is order amoxicillin at the following link and keep her on the Tylan until it arrives, then switch over for an additional ten days...
That would rule out most everything except an infection. Be aware that coccidiosis often has bacterial infection along with it and chickens will die if they aren't treated with an antibiotic in addition to the Corid. Can you buy Fish Mox from a local aquarium store or Petsmart? Or a pigeon...
It is likely one of two things that is making her sick - a crop disorder or a bacterial infection. If you are in the northern hemisphere where it's becoming wintry for the most part, coccidiosis is unlikely. It does no harm to go ahead and treat for it, though. But withhold vitamins during...