I haven't had a lot of sucess with treating bumble foot, although I did finally figure out that the coop where my 'bumble foot birds' resided has the roosts fairly high (4 feet). The only 2 birds that I had with Bumble foot resided in this coop and at first I thought it was a breed issue. Once I took the high roost away and they were forced to roost on the lower one, no more bumble foot.