We've been treating one of our hens for Bumble foot for about 3 weeks, we've followed recommendations from this site and others including soaking in Epsom Salt, trying to remove the bumble with a scalpel, tweezer, wrapping with vet wrap after using vetrimycin and antibiotic creme. We isolated her for 2 weeks and let her back out with her flock this week. She continues to limp and when we did the last dressing change on Sunday, (every 3 days,) it's still swollen and hard. We plan to do further digging and give her an injection of Duramycin today. I've never injected a chicken. Is it IM or sub q? Any good videos to recommend? We don't know what else to do and are feeling rather helpless!