One of my Hens starting limping today. I checked her out and there seems to be a spot on her foot that at some point she was bleeding from... But has since dried up. She insist on being with flock and made a loud fuss when I tried to segregate her from the others. She is still eating and drinking, but limps and flaps her wings as she roams around. Should I put something on her foot or is there anything I can do? I've only had chickens for about 8 months and this is my first injury. Any help is much appreciated!