Our young buff hen has stopped laying and her comb went pale, she seemed egg bound but after a bath we discovered a large grape sized bump with a black scab. I thought it was a tick, and pulled the black scab off to reveal this mess. I applied neosporin and went to fleet farm and got Blu kote. I'm really afraid she's not going to pull through. Any advice would be super appreciated. It's on her back side, by her tail.