Replied by Ted (Bangkok, Thailand)
Dear Dominique: Use the same mange formula, borax+hydrogen peroxide applied to the ears several times. I would add 1/8 teaspoon of baking soda to the drinking water plus 1/4 teaspoon of sea salt per liter of drinking water. The water will loosen some stools reducing the pus, but the borax+peroxide will kill most of the mites to the ear. No rinsing should be done.