We are having our first cases of bumblefoot on 2 of our 4 hens. We are treating them with Tricide-Neo soaks as it is mild bumblefoot, plus we don't have the guts to do the surgery... After a few soaks, the black scab was loose, so we just took it off. Is this a good sign, maybe a sign of recovery, if the scab comes off? It looks good under there, but seems to still have a tiny hole. Any thoughts? Thanks!