I have twelve four-week old chicks. I found one BO that has a very red ring around her neck from being pecked. I separated her with one other chick until I could buy the Blue Kote others on the forum mentioned. After applying, I tried to put her back in with the large group of chicks. She is a light color, and now with the purple collar on her neck, the others just dove at the area and they surrounded her and pecked. So out she came, and she's back in with the one chick. This stuff is a dye, what do I do now? Any suggestions on how or when to get them back in with the others? Thanks for any ideas.