Our girl keeps getting really red ears with nasty black gunk all throughout no matter how often I clean them. Some days one ear is black and some days both of them are horribly dirty. The veterinarian said yeast infections are what she keeps getting. I’ve been putting the medication they gave us to her and  it clears the gunk and ear infections for a few days then they’re right back again anyone have this problem. I would really like to find a cheap home remedy for these constant infections.