I also provided liver support by sprinkling a little of the human supplement “Liver Support” by Seeking Health in her food. You can look up the ingredients and buy them separately. I use the website Poultry DMV to learn about the potential benefits of specific supplements for sick chickens.
I suspected reproductive issues, so I took her to a vet who implants Deslorelin. It was roughly $280 and took several phone calls to find a vet who does this for chickens.