I had a duck everyone bought once and hated it. It had no immunity to bumblefoot at all. This looks spreadable. Some things are better to let go and stop wasting our time.
Ìt looks like a tight collar wound on a dog
I would suggest pouring hydrogen peroxide on it, neospprin or triple antibiotic cream, bandaging it close, and giving some antibiotics
Thats a death sentance. Give her sulfa trimethprim 240 mg am pm ASAP. In this cali hatchery pekin, it ran right up her leg to her heart but she didnt die 4 awhile. The others will cath it as nidules on the toe and it coukd give your hens entrobacter which is more enroflaxin. Awful.yours may...