Yeah, I wouldn't use wonder dust either--it will slow healing and doesn't make it heal any better. It just destroys tissues,, both proud flesh and normal tissues. A topical cream with an antibiotic and steroid both will prevent infection while triggering the body to heal normally rather than producing proud flesh so that you stop the problem rather than deal with it after it occurs. You will most likely have to get something from your vet as they are prescription ointments. Specific names are Panalog, Animax, Derma 4, Derma-vet.