I found my hen Checkers with 3 of her long wing feathers drooping, whatever happened, happened 3 weeks ago but I couldn't figure out what caused her injury. When I checked the wing her bone was sticking out, ever so slightly though, nothing ripped out of any sort. The area around the bone exposure is in the middle of where the wing bends, the area around where the bone stuck out is swollen an seemed to have puss the last time I checked, the bone is covered by a scab and seems stable. Checkers acts completely normal, she eats normally, walks around normally, an her wing is fully functional, my question is, what can I do to heal this? Please help, I'm not experienced at all with hen injurious.