I dug up a little more information on the Betadine foot soak. (You're supposed to do it for 2 to 5 minutes, not for one minute like I said.)
The Huge Benefits of Foot Soaks for Dogs|Dr. Karen Becker
And it looks like you can treat the whole body with diluted Betadine from the neck down:
https://www.facebook.com/notes/dr-jo...t/102327473731
I realize that this information is from Mercola, and some people have issues with his work, but I know for a fact that the foot soak works for Bella's yeasty feet. Also, it seems to be nontoxic and doesn't have to be rinsed off with water. Just soak the feet and you're good to go.