Hi, could he be getting water in his ears when you bath him? This is sometimes a cause of ear infections. I don't pour water on my guys heads when I bath them, I use a face cloth and soap to wash their faces and their nose ropes, and ears. Then I make sure the ears are dried really well. In between their baths I use unscented baby wipes to keep their faces, nose ropes, eyes and the outer parts of the inside of their ears clean. I use a homemade cleaner in their ears when needed, usually about once a month. Take a plastic bottle with a nozzle on it, you can find them at the dollar store, and mix equal amounts of vinegar, preferably apple cider vinegar and hydrogen peroxide, and a couple of drops of rubbing alcohol, be careful not to use too much rubbing alcohol, as it can be drying and irritating to the ear, and cause burning of the tender skin inside the ear.