The first pic is the injury at day 5.
The others were taken at day 11 (Wed 28, yesterday).
We are treating it with a combination of dressings to form greasy layers. Manuka honey on the fleshy part of the injury, a concoction of Manuka honey, Comfrey mixed with a paraffin grease emulsifyer is applied proud on the exposed bone. When it looked like the bone was going to become necrotic we applied the Amnion sac of a goat as a biological dressings and were happy to see signs of growth on the bone three days later.