chiropractor! It may not work for all kids, but DD2 (24.5 months now, also nursing ;)) is doing great! After 7 ear infections between January and June this year, we scheduled to get tubes placed. Went to the hospital and it just felt so wrong-- we left.
Had her first chiropractic appt. the next day. She woke from her nap saying "Mommy, I FEEL ear *cough cough*"-- her ears almost immediately started draining down into her throat!
Not a single ear infection since. Her neck was slightly off and blocking the passages to the ears. She went 2x a week at first, now once every 10-14 days. I'll be honest, it can look frightening... and I often give her tylenol right after in case it gets a little sore with the bones, muscles, and nerves moving. Her personality instantly changed from whiney, clingy, and miserable to happy and vivacious-- it is so worth it.
Several studies I've read since showed no significant improvement with tubes vs without... I'd really recommend trying a few chiro adjustments (give it a month?) and see what happens.