Hello, My one leghorn is feather picking all of the chickens again. They all have missing feathers, sores and bleeding on them at the tail feather. The only one who doesn't have a bare spot there is the one who is doing the pecking. I returned the BlueKote after reading about it last time this one chicken was picking on only one other chicken. I bought a flock block and that seemed to work. I order Pinless Peepers 2 days ago and am waiting for them. I want to do something in the mean time and read I can put Vick's Vapo Rub on the chickens. Won't this burn them????? Anyone have experience with this? Thanks!!