I use 1/2 apple cider vinegar and 1/2 warm water to clean then use half and half mix of hydrocortisone and monostat7 to coat the ear for black gunk it works great you can find a video on you tube in bull dog hacksElsa has black /dark Brown ear wax in one ear...
Iv been cleaning with Auralclean for dogs but after 3/4 days its back....would appreciate some suggestions/ideas ...