I am dealing with the same thing. I will tell you what others on here have told me. I by no means have any experience, but my hen is doing better, and came to this area to post the good news.
First they told me to seperate her and keep her from jumping up and down on the roost. So I crated her.
They told me to give her 1/4 aspirin each 12 hours. I have for 5 days now. Tricky to hide it in the food, and have it not drop out of that food.
I then on my own, thought IF she did have something stuck in her foot, infection might be setting in, so I have her on Duramyicin (1 tsp/gallon water).
Past that, I have no experience. Called the ONLY bird vet in my area, and it was $60 bucks to walk through the door, and then anything passed that was more $$ Not an option for us at this time.
Good luck, and wish you well. Hopefully some one with more experience will come on and help!