Question: how to treat dog ear yeast infection without vet?
Answer: Spray a mixture of water and apple cider vinegar in the infected area. ... 
Apply five or six drops of oil of mullein combined with oil of garlic daily for 10 days. ... 
Massage equal parts pau d'arco and mineral oil into the ear two to three times a day for several days. ... 
Apply a warm compress to the ear several times a day.