I would get some Tylosin from Jedds.com or Tiagard and treat for possible MG, a chronic sinus and respiratory disease. Have you added new chicks recently or did she (or a hatching egg) come from another person?
Sorry for your loss. There are a couple of red areas where the hen is being feather picked by a bully. Do you have a rooster? Have you seen any vent damage to the ones you have lost? The best way to know what is killing your hens is to get a necropsy by your state vet on one if you should lose...
It looks like she passed an egg membrane as you thought. The dropping from the internet pic looks like egg matter or the yellow urates seen in droppings from hens with reproductive disorder or water belly. Keep her vent clean since maggot infestation from flies (fly strike) can be deadly in warm...
Green skin can be bruising as well. The one toe looks enlarged, so it might be broken or sprained. It could be early gout as well. Time will tell. There is a break in the skin on the foot pad so the start of bumblefoot, but very mild now. You could do some soaks in warm Epsom salts for 15...
Lumpy under the vent area sounds like she might have salpingitis or oviduct cancer. It may be after you lose her when a necropsy can be done, to know for sure what she had wrong. I would check her crop each morning before she eats, to make sure the crop is emptying. Then I would make her as...
How old is she? Can you get her drinking some fluids with electrolytes, or use Gatorade or Pedialyte. Homemade electrolytes can be made with a tsp of sugar and a tiny pinch of salt to a cup of water. How does her crop feel—empty and flat, full, firm doughy, or squishy? Has she been laying eggs...
Do you have any pictures of the wounds? I would clean the wounds twice a day with saline, and then apply plain triple antibiotic ointment. Some use manuka honey instead, but it is expensive. If infection is supected, clean it out with chlorhexidene or Hibiclens, or Betadine. Hydrogen peroxide...
If you can get another pair of hands, you could open her beak and look inside with a flashlight or headlamp for anything stuck, yellow material or mucus. Unless she is in any distress, she probably is fine.
I am very sorry that you lost your hen. It is unfortunate that the young girls fed the calcium to her in the first place. I would not make a huge deal over this with your neighbor, since you have to live there. I would take some time to mourn your hen, and then not let your hens visit there. But...
They usually know where to find shade if it is available. I would see if she bumped it, perhaps by being chased or stung by a bee or wasp. I wouldn’t worry unless she shows other symptoms, or if she has been around a new chicken or someone else with chickens has come to visit. They can get...
Here is a good thread with examples of chicken slings for lame birds, especially posts 5, 11-14, and 31:
https://www.backyardchickens.com/threads/versions-of-chick-chairs-please.1166308/
As long as she is alert and active, eating and drinking, it sounds like she is doing okay. Is her comb fairly red?I have only had one to live until 11 years. Chickens can make weird noises sometimes. If she was gasping or having labored breathing, I would be concerned.
My goodness, Tramadol? That doesn’t seem to be something helpful. I would hope that it wears off soon, and you can get her drinking and eating once again. B complex is okay to use 1/4 tablet daily, and is pretty mild. But I would not let the vet throw more drugs at her. Sometimes the best...
I would keep going with the B complex, but sorry that she is getting worse. It does sound like Mareks could be a possibility, but varus or valgus leg bone deformities are common leg problems in chickens. I would want to find out for sure, since Mareks can affect the future with your chickens...
Do not soak anymore, since she is weak. Give her fluids, electrolytes or sugar water, and some mushy chicken feed with egg. Break her from being broody once she is eating and drinking well. A wire dog crate with food and water, and no bedding is good for breaking a broody spell. If she still...
You don’t need sterile water, but you can use that or tap water with the salt to make saline. Heat will sterilize tap water. That is what they rinse wounds with in the hospital.
Feed stores sell it near the feed and medication aisle.
Manuka honey (expensive) is sold at Walmart in the honey...