my 8-10 week old thought to be cockerel was attacked by my boarder collie when she got out and in the chicken coop. i have 4, 8-10 week old chicks the i hatched from the egg and 3 are hens 1 is a cockerel. when my dog got in the cockerel ran towards her when the other's did there best to get away. i managed to get my dog out but she had pulled out all of my cockerel's tail and back feather's. and has a small tare in his skin that was bleeding bad at first. i took him out and put him in a box with a old blanket over the top. i left him inside where it is quiet and gave him food and water. and left him for the day i put him back in his coop with the other hens for the night and checked back in the morning he seems ok and is lively enough. it is 2 days since it happened now and is still acting like nothings happened but i'm worried he might get an infection. what would be the best thing to do. NOTE: i've also cleaned his coop to try and avoid infections.