What I wonder is, are these bumbles like candle wax--as in they'll melt away eventually-- or are they like rocks in your shoe, that you need to remove or else they will never go away? After all the soaking, anti-inflammatory meds, antibiotics (my duck was on both for an eye ulcer), etc etc, the bumbles still look the same, I'm thinking it's the latter (rocks in your shoe) and not the former (candle wax).
Then again, I know some of my daughter's friends who got piercings that were rejected by their bodies, as in just eventually pushed out by the body, so maybe it's possible that something similar happens with a bumble?! (Although I'm tending towards the doubt-that-will- happen side.)
My duck is eating well, drinking well, happy and doing all of her duck things. I do note that her foot felt really hot when I first discovered the bumbles, but now, after the meds and soaking, it doesn't, so there is that small improvement. I don't feel alarmed, just incredibly frustrated.
My concern about doing the home surgery on my duck is that I cannot isolate her when she's well. She screams bloody murder, is stressed, doesn't eat etc, so I can't put her in a space with clean shavings, etc, which is what I'd need to do if I cut her foot open.