One of my 12 week RIR chickens has a broken foot. I accidentally stepped on it and it broke. I can feel the bone is broke clean in half. I feel so bad about it. It happened Friday evening. Now it swollen, deep pink almost purple and they are like fluid filled blisters between the toes. I had it splinted but got scared it was too tight so I took it off yesterday but today it is even more swollen. I don't know what to do and I don't want my chicken to suffer. Do you think he will die? Should I put him down? He is separated in a cage from the others and he is eating and drinking.