bumble foot surgery

Hello I have been treating Bumblefoot from years and it always Recover ..but in recently my rooster devloped Bumblefoot which was hard I apply some lubrication to soft the scab and decided to soak in Listrine and salt cleaning it with medical grade alcohol ..and wrapping it with silver...

Re-posting this with fingers crossed I might get some good leads: https://www.backyardchickens.com/threads/recurring-bumblefoot-early-stages-photos.1377448/

My red star sex linked chicken lost a nail this week. I was finally able to wrangle her for examine her more closely and her foot looks awful. It seems like bumble to me, but I want second opinions. If it is bumble, does it appear too advanced to treat with vetricin? I'm leaving for a trip soon...