What sorts of things was she eating before she stopped? Was she eating lay crumble/pellets or just scratch? There is a problem that chickens get called cage-layer-fatigue. You can read about it here:
http://www.merckvetmanual.com/mvm/index.jsp?cfile=htm/bc/205806...
I really think you need to force feed her. If you have noodles, great. Also try the melon or egg, either hard boiled or scrambled. It will take time, but if you can do it without stressing her too much, I think it will help. Is she still drinking a little?
Leadwolf's food ideas are good ones...
Do you have any cat or dog food? You could try soaking that in water and force feed her that. Try to get her crop to the size of a golf ball. You could also try cooked pasta. It's slimy enough that it should go down easily. I'd use the elbow type, it's a perfect size
Can you post a picture of her poop and her face? Has her crop emptied yet? If her comb is pale? If it is, I'd be willing to bet that she's anemic from either the mites, some other disease or both and that has weakened her so much so that she can't walk. I guess it could be coccidiosis, but...
Is she still drinking? If she is still drinking, make sure she has a water source that she cannot drown in. Sometimes, when they are weak, they will fall go to sleep with their head in the water dish and drown.
I did a search for Avian vets in your area and found theses two...
Poly-vi-sol: http://www.google.com/search?q=poly+vi+sol&ie=UTF-8&oe=UTF-8&hl=en&client=safari
Good to hear she is drinking. You could also try offering her Pedialyte or Gatorade if she stops drinking the Nutri-drench water.
-Kathy
How big is her crop? Is it the size a grape, egg or tennis ball? Does it stay they same size from day to day? It could be an impaction, so massaging it might help. Just be very careful when trying to give her oil or water as she could aspirate it. What does her poop look like? Is she in a warm...
Read the info here: http://www.avianweb.com/sickbirdcare.html#food
If you're up for it, I could try to teach you how to tube feed, but you would need some supplies.
Are all of the bugs off now?
Mites can make them anemic and very sick, the same way fleas will make puppies and kittens sick and pale. Is she drinking? Personally, I worry more about dehydration than not eating. If she is drinking, and you have the time, you can force feed her stuff like...
If you decide to give antibiotics, this link might have some useful info for you: https://sites.google.com/a/poultrypedia.com/poultrypedia/medicine-chart