I noticed that my youngest(just turned 3 weeks) was pecking at her back end right at the base of the feathers on her butt and it was bleeding. Shortly after, the others noticed too and the chasing began. I already had the blue kote on hand, so I grabbed her, took a wet rag and cleaned then dried the area and sprayed the blue kote on there. It looks like a small bump(maybe irritation from pecking area?) She knew something was there and started going in circles(maybe it burned until dry?) The others slowed down on the pecking for a couple minutes, then in came the ducks. One of the khakis went for the both immeduately. Daisy(the chick) hid under Sunny(the Peking duck) I took her out and put her in a cat carrier with a blanket. How often should I treat with the blue kote? Obviously she will need to stay seperated tonite. During the day the chicks and the ducks are seperated anyway. Should I treat her in the morning before work and keep Her seperated from the other chicks? They are in the brooder but all go in and out, so she can get away but I don't want her stressed. I don't want her stressed being away from them either. Help?