A couple of months ago someone posted a formula for itchy, yeasty ears. It was Listerine and Boric Acid Powder. How many times a day do you apply it? Thank you

I cleaned their ears and put the Listerine & Boric Acid Powder in once a day. It won't hurt them, as they shake out all the excess. Using this works best if you clean out the gunk first. I use a q-tip dipped in rubbing alchol. Be careful not to go into the ear canal towards the brain. My dogs enjoy getting their ears cleaned - especially if they have an infection.