Oh Aaargh. Ear infections. Hate them. I used to get them a lot, until a paramedic gave me a tip that worked. She said the minute I could feel a blockage coming on (usually with the onset of a cold) that I should take decongestants. (Pseudophedrine is the best.) And that would prevent the buildup of fluid in the ear, which would later become infected. I thought that was kinda out-there advice, but it worked! I used to get chronic ear infections a lot back then; I haven't had a single one since. And that was about 35 years ago.