I would get some Hibiclens chlorhexidene or Betadine (Equate Wound Antiseptic) in the first aid aisle at Walmart. Use a small amount in your warm water soak to the leg. Apply the antibiotic ointment twice a day. You can get amoxicillin online but it can take a week to get it. Your regular vet...
It probably will be okay if the hen only gets the one dose of wormer in 10 days. I know some will disagree with that. If you still want to try and get another dose in 10-14 days after that, you could reworm the 4 hens. Keep in mind that albendazole is very safe, but there is a 14 day egg...
Can you separate her in a wire dog crate with food and water while she heals? I would keep the crate near the other chickens so she remains part of the flock and they keep familiar. That will make it much easier when she is out in the population. I would make sure that the timer on the automatic...
Could she have been pecked in her eye? It looks like the conjunctiva (the pink tissue) around her eye might be protruding and another chicken might have pecked at it or she could have scratched it. I would rinse her eye with some saline or Bausch and Lomb Eye Relief eye wash. Then apply either...
Very sorry for your loss. Yes, that is coliform salpingitis which causes coelomitis (egg yolk peritonitis.) It is a common cause of death in hens. E. Coli infection inside the oviduct and abdomen is a usual cause. The bacteria can travel up through the oviduct from the vent, and some bacteria...
Trim away feathers near the wound and take a closer picture. Do you think a raccoon or other predator did this? Was it during the daytime, and are your chickens locked up at night? Saline 2 tsp salt dissolved in 1 quart of water (or 1/2 tsp per 8 ounce cup,) can be used to rinse the wound with a...
How many birds do you have? Do they have things to explore or climb on in the run? Do you have any birds who have perfect feathers? Spend some time watching who is picking why. You could try to increase their protein in the diet for a bit, such as using a 20% all flock feed, or giving some extra...
They may be pecking out each other’s feathers. Do you have a rooster who is mating them? Can you see any tiny bugs on their skin or eggs? What are they eating including extras? Are they getting out of their coop and run to free range daily? How much room is in their coop and run and how many birds?
Sorry for your losses. It would be hard to know what is wrong without a necropsy and some testing. What is ffh? In what state are you located? Can you keep her body cold, but not frozen in a cooler on ice or wrapped in plastic bags in the fridge till morning? Then call your state vet to ask...
Here is your other thread about your pullet, and glad to hear that she survived.
https://www.backyardchickens.com/threads/update-on-my-dying-chick.1678194/
Her comb and face color look very bad. Can you have her drink some water with electrolytes or some Gatorade? If you think that she might be egg bound, a human calcium tablet or Tums cut in half could be given orally to help pass an egg?
The pupil being small with a lighter iris could have been an eye injury from a peck, and sometimes the ocular form of Mareks disease can cause a small pupil with graying of the iris. I would lean a little more toward it being an injury. Is she able to find her way around and get food and water...
I really don’t know what else you can do for her. Once rubber or a foreign object reach the gizzard, you just have to hope that it gets broken down by the gizzard and works it’s way through the intestines. Is she getting access to grit?