It sounds like a prolapsed vent to me also.
I also have Red Sex Links and this happened to one of mine last September when she was about 6 months old. I think it might have been prolapsed for at least a week by the time I noticed something was wrong (I'm a New Egg) and because of that there was dried .... gunk on the prolapse. BTW, and the is probably TMI, but it stunk to the high Heavens! Through many helpful posts here on BYC I learned I needed to soak her bum in warm epsom saltwater to try to dissolve the .... gunk, which I did but there was still a lot of .... gunk left that I never could get off. After her saltwater soak I would make a mixture of honey & Prep.H and pour it on her bum and poke the prolapse back in (definitely recommend some latex gloves!). I would then put her in a dark dog kennel to try to keep her calm hoping it would stay in, but it never did for long. I think it didn't stay in mainly because I never could get the ..... gunk off and she would feel like something was in there and needed to be pushed out and so that's what she did. I did this twice a day for about 3 days, which is how she got her name of Patience because that's what she was through it all. At the end of the 3rd day she still wasn't able to keep the prolapse in, so I decided to take her to the vet and (1) see if he was able to fix her, or, (2) put her down because there was no way I was going to be able to do it myself. (Yes, I said I took her to a vet. Like I said, I'm a New Egg, plus my 9 year-old daughter & I raised these as pets when they were just 3 days old.) The vet was able to clean the .... gunk off, poke the prolapse back in and put a stitch in it so it would stay put, kept her overnight, took the stitch out and sent Patience back home to us.
She did very well, despite her 7 "sisters" picking on her because she was weak. She continued to get better and was laying eggs and everything was good until mid-January when the weather got down to 20 degrees for a couple of days, and then stayed right at freezing for several more days, which is very unusual for us in Texas. One cold morning I went out to feed and water them and she was in the nesting box and I could tell she was almost gone. I held her for a while and then put her in the dog kennel because my daughter and I had to leave to go to a Girl Scout cookie booth. By the time we got home several hours later my husband had her buried with a cedar cross on her grave in the back yard.
I'm sorry for the sad story but I hope for the best for your girl.
I also have Red Sex Links and this happened to one of mine last September when she was about 6 months old. I think it might have been prolapsed for at least a week by the time I noticed something was wrong (I'm a New Egg) and because of that there was dried .... gunk on the prolapse. BTW, and the is probably TMI, but it stunk to the high Heavens! Through many helpful posts here on BYC I learned I needed to soak her bum in warm epsom saltwater to try to dissolve the .... gunk, which I did but there was still a lot of .... gunk left that I never could get off. After her saltwater soak I would make a mixture of honey & Prep.H and pour it on her bum and poke the prolapse back in (definitely recommend some latex gloves!). I would then put her in a dark dog kennel to try to keep her calm hoping it would stay in, but it never did for long. I think it didn't stay in mainly because I never could get the ..... gunk off and she would feel like something was in there and needed to be pushed out and so that's what she did. I did this twice a day for about 3 days, which is how she got her name of Patience because that's what she was through it all. At the end of the 3rd day she still wasn't able to keep the prolapse in, so I decided to take her to the vet and (1) see if he was able to fix her, or, (2) put her down because there was no way I was going to be able to do it myself. (Yes, I said I took her to a vet. Like I said, I'm a New Egg, plus my 9 year-old daughter & I raised these as pets when they were just 3 days old.) The vet was able to clean the .... gunk off, poke the prolapse back in and put a stitch in it so it would stay put, kept her overnight, took the stitch out and sent Patience back home to us.
She did very well, despite her 7 "sisters" picking on her because she was weak. She continued to get better and was laying eggs and everything was good until mid-January when the weather got down to 20 degrees for a couple of days, and then stayed right at freezing for several more days, which is very unusual for us in Texas. One cold morning I went out to feed and water them and she was in the nesting box and I could tell she was almost gone. I held her for a while and then put her in the dog kennel because my daughter and I had to leave to go to a Girl Scout cookie booth. By the time we got home several hours later my husband had her buried with a cedar cross on her grave in the back yard.
I'm sorry for the sad story but I hope for the best for your girl.