As a swim instructor and former competitive swimmer, I know how horrible “swimmer’s ear” can be. My dad used to make a concoction and put some drops in each ear after swimming. We couldn’t recall exactly what his concoction was, but I saw this recipe online written by a pediatrician. See the post and reviews here.
1 part vinegar
1 part alcohol
Put a few drops of the homemade swimmer’s ear drops in each ear as a PREVENTATIVE measure. Do not put in an ear with an active infection or it will cause more pain and burning!