I have a Delaware hen whose toenail was torn a couple of weeks ago. We cleaned and dressed it for about a week, and it looked good, except that she still limped. We decided that was because of the toenail being an irritant. Tonight we clipped off the skin holding the toenail on, soaked, dressed and bandage it. I noticed swelling Underneath the toe with a tiny black spot. Should I be worried that this is infection?