So yesterday my dad and I went to the run to feed the chickens and we noticed one of the hens couldn't move around very well.. so I grabbed her and saw that her eye had been hurt. But like not the eye but the eyebrow area. I believe one of the other hens did it.. since one of them just went broody around the same time. Here is the hen's eye. Should I try to treat it or should I let it heal on it's own?