Hi everyone. I apologize if I posted this a few times. My phone keeps clearing everything when I try and submit. One of my 10 hens has blood and plucked feathers by her tail/saddle region. I have no roosters, and checked everyone for mites ( nothing on any of them ). She is one of 9 brown egg layers. I don't want to toss all the brown eggs forever, since I don't know which eggs are hers, so I am worried about using blue kote. I have sprayed her with Vetericyn a few times ( injured as of yesterday afternoon ). She was fine this morning, the injury clean and dry, at 7am and again at 9:30am. I haven't witnessed any of the hens pecking or plucking her. But of course when I checked quickly as I was leaving for work this afternoon, fresh blood!!!!! So I am wondering if anyone has tried adding blue food coloring to Vetericyn? Do you think that will work? The spray is safe for chickens, and the blue coloring should hide the wound and redness. I will also try and get a saddle apron tomorrow, and will separate her if necessary. Any advice would be helpful. Thank you.