Studies indicate that dogs given a whole-food diet when young have fewer yeast infections in the ears and that the incidence of ear infections may decrease as the dogs become older (1).
the humidity makes a perfect place for yeast and bacteria to grow (1). Luckily, there are some things you can do to prevent ear infections. Related: How to Use Olive Oil to Get Rid of Dog Ear ...
but some dogs will have recurrent infections no matter what is done. In March of 2024, a new medication, DuOtic, was approved by the FDA to prevent inflammation and new yeast infections for 45 days.