Get rid of the dairy!!! My older two had chronic ear infections, and it wasn't until the second one was 6 years old (and had had two rounds of ear tubes and a permanently ruptured eardrum that had to be surgically grafted....a surgery that involved cutting most of his ear off to access the ear drum and then reattaching it....) that we figured out he had a consistent reaction to dairy. Even now--at 17 years old--if he eats dairy (particularly cheese) when he has a cold, he is guaranteed to get an ear infection. If he doesn't eat dairy with a cold, he doesn't get an ear infection.
Oh the pain he suffered because it took us so long (with CW of "just treat with antibiotics) to figure this out
Zone diet on and off for several years....worked, but too much focus on exact meal composition
Primal since July 2010...skinniest I've ever been and the least stressed about food