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.
Candida (a yeast and fungal infection) is not something that can be shrugged off as unimportant. It can lead to very serious complications and in small cases, even death. Certain foods are said to be a trigger for Candida infestations and therefore should be avoided.