Please help....these open sores began a few weeks ago, i sprayed with blu-coat and isolated the infected hen. She seemed to get better, but then two others showed the same wound. The purple color is from the blu-coat I sprayed on it (feed guy's recommendation). The original hen is listless and Im very worried about her. I thought it might be scaly leg mites, but the open wound didn't fit the pictures I saw on line. Very worried about my girls....