Jovi gets this in her wrinkles and she is even losing hair with it too. I factored it is yeast seeing as how it looks like the rest of her areas with yeast. So everynight I wipe her with chlorhedidine wipes and it has been clearing up tremendously. So just treat her with yeast products and you should be good. It will def be an ongoing thing so even if it clears up you should still be treating it.