Glad you could see the vet. They are always quite expensive but can be helpful. It sounds good that she is eating a little more. The antibiotic and anti-inflammatory pain med may be making her feel a bit better, and treat anything respiratory. Let us know how she is doing. You sound very...
The bile in the poop back in October could have been from liver problems (ie: fatty liver or liver problems from egg yolk peritonitis.) It is hard to know what is going on with your chicken. Sometimes we don’t get answers until a necropsy can be done if we lose them.
Does she have any yellow material inside her beak on that side or a bad odor? Sometimes canker can be inside the beak and protrude on the oitside. Also, I have seen a few of those turn out to be a tumor which a vet excised them. Is she eating and drinking okay?
Ii would keep her with her flock for comfort as long as she is not being bullied. Chicken feed with a little warm water and some scrambled bits of egg would be good to offer. Respiratory diseases can affect laying. Reproductive disorders can cause slow emptying of the crop and digestive tract...
That wound just looks too bad to survive. I would try to make her comfortable and warm. Treat for shock with water with sugar 1/2 tsp per cup or electrolytes. Hold gauze over her wound to try and stop bleeding. Separate her. You are the best judge as to whether or not she can survive this. I...
Do you have any pictures before or after the surgery? Peroxide may help with removing blood, but it needs to be rinsed off with water or irritates skin and causes itching. It may wear off in time with dust bathing.
Oh my, is she still alive or did she die? Could she have been pecked or attacked? That is what it looks like. Blood and yellow skin could be from fatty liver hemorrhagic disease, but if she was attacked that may not be the case. Cancer could also be a possibility. Was she in the coop or outside...
Sorry for your loss. I hope that it was not Mareks. It would be good to get a diagnosis which can be done with a necropsy and pcr testing if you should lose another bird.
The eye looks to have a corneal abrasion from the pox. That might benefit from the triple antibiotic ointment as well. There is a vaccine for birds not yet exposed to fowl pox in places like where you live. Most birds that get pox, are immune to getting it in the future. Here is where to...
It could be favus, a fungal infection, that can spread and cause feather loss. It causes a white chalky residue on comb, face, wattles and the head. Miconazole or Monistat cream, or clotrimazole are creams that may help it. Apply with a disposable glove. You can enlarge some pictures of favus in...
DE is not the best thing for mites, but UK doesn’t sell permethrin. Can you get ivermectin pour-on there? Could your vet office help to advise you? Liver (chopped) or poultry tonic with iron may be helpful to her.