I noticed one of my quail liked to just lord over the dust pan and was watching this morning as it rose a second. It was very lame in one leg! So I pulled it out and looked. It's entire "drumstick" is swollen and a bright, nasty green! I can't see an injury other than something that kind of looks like an ingrown feather follicle. What should I do? Just give antibiotics and hope or cull or what?