In Chinese medicine we describe ear infections as "damp heat" in the ears. In addition to keeping ears clean to prevent infection, in my practice I talk with clients about dietary options to help drain damp and clear heat, as well herbal formulas and acupuncture treatments.
Gator loves to cool off in the pool; but I make sure to clean out his ears afterward
I have clients use "George's Aloe Vera Juice". Pour a cup of the juice over a few cotton balls. You can add 1-2 drops of tee tree oil (a potent anti-microbial essential oil) if your dog is prone to yeast or bacterial infections. Be careful to not use more tea tree oil than this (and never use it in cats); as this medicinal oil can be toxic at high doses.
Use the cotton balls to clean the ears. Never use Q-tips to clean your dogs ears at home; as it can be easy to go a little too far and severely damage your dog's ear drum
Here's Gator getting ready for an ear cleaning. It helps to have some treats handy as a reward :)