I came home from vacation to a chicken with a pretty serious limp. Other than that she's fine. She will let me manipulate her three front toes but when I touch the back one she flails around. I've isolated her in a kennel for the past 3 days and it's gotten a little better but not much. I don't think it's broken as she can curl that foot up completely. She is eating and drinkign fine, there's no swelling, its just very sensitive. Can chickens take advil?