Anyone have any fool proof suggestions? My indoor/outdoor killer cat seems to have it on his neck, - which I saw after I found him beheading a rabbit in the yard (gross) - I search on here and saw blu kote, and lotrimin, and MTG - but not sure if I should try any of those on a cat. The vet is too expensive, since we try to use only in emergencies, of which we have had three this year and am still paying them off for out GSD's euthanization.