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Dog has yeast infection on skin but medicine isn't working from vet? Any suggestions? - my dog has yeast infection

My dog broke his leg somehow 2 weeks and must have a splint on his leg. After a week, it is wrapped up, I noticed a bad smell, so I took her to the vet and said it was a yeast infection. When she broke her leg, was in the "healing" and no open wounds or even a scratch. Anyway, I do not know how he ends up with large bleeding sores from a yeast infection ?.... It reeked of rotting flesh ... awful! He put on cream and it gets worse. So bad that I vomited almost smell and how it looks. She said: "Keep it dry. My question is: Can I use something else, preferably more, of course, do not function to help with animal care medicines and was arrested after a week and get to 10X worse. HE also has a yeast infection in one ear, I had to deal with mixed alcohol / vinegar, but I think it would be difficult to burn when I put in his leg. I have another yeast infection cream on my baby, I wonder whether you could use that a dog? A little to the left .... does it hurt? hmmm?