One of our barred rock girls started limping a couple of days ago. At the time we couldn't find anything wrong with her and figured she had just jumped wrong at some point. But today her leg and foot is swollen. We've checked it all closely and there don't appear to be any broken bones, or cuts or other wounds. She is eating fine and moving around hopping on one foot. She is even laying eggs still as she lays in a corner of the yard rather than in a nest box. She is trying to put the foot down when she walks. Is there anything we can do for her to help with the swelling or should we just let it run its course? And could it be anything other than just a pulled muscle or sprain of some kind? Thanks.