A great article on ear infections and why antibiotics do not work.
I had chronic ear infections as a kid (and now recently as an adult from surfing) and the use of antibiotics has only led to more problems, namely called damp heat.

“The use of antibiotics may tend to injure the Stomach and lead to the formation of a residual pathogenic factor in the ears that is usually Damp Heat. A residual pathogenic factor in the ear from the improper use of antibiotics is the most common cause of chronic ear pathology in children.”

Read a link below;
ear infections and antibiotics