I have a Shih Tzu who used to suffer from chronic infections of the ears. We took him to the vet over and over and was given one antibiotic after another, many creams, ointments and solutions etc...I have also tried MANY of the over the counter things and nothing worked. I came across a product that I buy on Amazon.com (i get it there because its cheaper) its called Zymox with hydrocortizone, its clear, no smell and none staining. This stuff is a AMAZING! I used it once a day for 7 days and it took care of it! Its made for bacterial, yeast and fungal infections. You can also get it without the hydrocortizone.