FSM has a protocol for Wound Healing That seems to work. I haven’t tried it on Diabetic wounds that aren’t healing but I have used it to speed healing of a bad dog bite that healed nicely with minimal scarring. I also used it with some modification for a real severe case of Athletes Foot and it cleared up. They do say it works wonderfully for Diabetic wounds that aren’t healing. I just haven’t had a chance to try it for that yet. But if it does work as claimed, you could avoid an amputation.