Are they scabs in the photo or is it more like a growth, sorry I can't really tell |
If they are scabs then I would lean towards perhaps what we call greasy heal, one of my old horse used to get it and it would take ages to heal, it looked very similar, I had to change her diet and dress her legs in Rosemary Cream to soften the scabs then wash them in a fungicidal wash.
Did the vet take a swab at all? It sound like he wasn't very committed
I do think though a vet (possibly a different one) would be a better use of time than taking another picture - we can only tell so much.