My dog has had a yeast infection on skin for several years. Not sure if it is systemic fungal problem. He is now on Atopica for suppressing his immune system not much better than the antibiotics and steroid shots pushed by the vet. I wanted to try the solution of 1% copper chloride, 1% zinc chloride and 20% vinegar. Can't find where to purchase the copper and zinc compounds. The chemical companies only sell in bulk and I have only one pharmacy in the area that does compounding and they are going to check to see if they can get it for me. Do you have any suggestion on where to purchase? He is eating holistic dog food by Solidgold Gold n' Flocken but I may talk to butcher and see about getting him scraps of chicken, pork and liver which is very cheap. My poor dog get such smelly, black crust on his tail, butt, and inner thighs so bad but it does show up also on the rest of his body and around mouth but not as bad. During allergy testing (by blood) he was determined to be allergic to grass and trees but that wouldn't account for the outbreaks in the winter.