Thank you for all the helpful info. I figured it was a bit of a prolapse but helps to have someone confirm it since we're still learning. It has gone back in by itself so far, especially after we bathe her. We do give all our chickens access to crushed oyster shells, I put it in wither their food. but glad to know TUMS is an option as part of treatment. I'm not always sure they eat the oyster shell. I have been putting a bit of apple cider vinegar in their water as well and I've been feeding my infected chicken some of that with a syringe about once a day.She seems to like it. She's been laying, not as regularly, but at least a few times a week, although I think she hasn't in the last few days.
Their feed is organic chicken feed I buy locally here, Ranchway Feeds Pellets. and they get some treats like leftover salad stuff and scratch feed with mealworms and sunflower seeds but not all the time. They mostly eat their regular chicken feed. We usually don't give them a lot of table scraps unless it's fresh fruit or salad scraps. Every once in a while I give them some dry oats. And while it's been really cold here I put out a couple of suet cakes for them.
My husband and I bathed the infected chicken yesterday in water with epsom salts and let her soak a bit in the warm water to loosen some of the dried stuff on her rump. It helped a lot. she didn't have as much discharge today. We'll keep bathing her until it's all gone and I can tell some of her feathers are slowly starting to return. I will definitely get poultry vitamins and the antifungal/hemorrhoid cream.
Thank you again for responding and giving so much helpful advice. It's a bit of a learning curve for sure but we really are enjoying having them. they are definitely very interesting and funny animals.
