Dogs should be bathed twice a week to start than once a week, When; after a week the skin is still looking good than you can go to once every 2 weeks, but in dogs with bad problems, never less than that. You can’t let the yeast even start. A 50/50 Apple Cider vinegar and water rinse is also very helpful. Do not forget the inside ear flaps and you can go into the ear canal when scrubbing. Whatever shampoo you use let it sit on the dog at least 5 minutes for short haired dogs, 10 min. is better.
Sometimes just spot cleaning helps if only a couple areas are bad. That can be done with a wet wash cloth with a bit of medicated shampoo on it then towel dry. Does not need rinsing
I will repeat here, On healthy dogs the yeast spores are naturally there but are kept in control by the body’s natural immune system, when out of control they need to be killed, there is oral medication called Ketoconazole, or fluconazole. This does not last long term and needs to be given on a regular basis to keep yeast spore off the skin to help dogs with problems.
Having said this, I just heard from Nina Garlie that she found something that is working on her dogs. Both are in a medical profession, and have come up with a solution they say works well, in between bathing to kill yeast spores from the skin. She sprays a combination of alcohol, vinegar, betadine and boric acid daily on the skin, and tells me it has been working.
Add 6 ounces of the isopropyl alcohol to a bottle, and add 1/2 teaspoon of boric acid powder. Shake until the powder is completely dissolved, and add 2 ounces of white vinegar. Shake again, and add 1 teaspoon of the Betadine. Again, shake well.
It is also important to keep teeth clean yeast can get in the mouth also. It is a fungus that can get everywhere.
If you have a dog with problems
Start from the inside out. Food, probiotics. And supplements
Test for autoimmune and thyroid problems
Keep the skin clean and dry.