1 If the smelly ear is due to ear mites you need to clean the thick accumulated ear wax. You can do so using 0.1% ivermectin, which kills the mites.  The water retained in your dogâs ears after swimming or bathing can be a source of bacteria and yeast infections.
And treatment is simple. Most yeast infections are caused by a type of yeast called Candida albicans. A healthy vagina has many bacteria and a small number of yeast cells. The most common bacteria, Lactobacillus acidophilus, help keep other organisms-like the yeast-under control.
The problem with a yeast infection (candida albicans) is if itâs not treated properly, it grows and infects other organs until it eventually takes over and becomes very toxic to the body. Once it gets into the bloodstream, it releases poisonous chemicals known as candida buds.