I have seen this is a few dogs and one I owned. It never returned and yes did go down. As a general routine I am always looking in and at ears. Ears with yeast infections will smell fowl and is easy to identify. Caught quickly it can be taken care of just as quick.

Both my dogs and even those I visit I routinely check ears, eyes, teeth, and my hands will run down and throught the animals coat. Best way for me to find ticks.

But that is me.

JW