Took my pekin drake to two different vets. First vet said it was just a scab, the next vet said it was bumble. He has been on two different meds and had surgery. He has had this foot injury for awhile now and it seems to not be fully healing. I just would like to know what you guys think this could be and why it is taking so long to heal? First picture is from Sept 3, the other picture is after surgery on August 26.