Do you have a juicer machine bud, if not grab fresh garlic, finely cut up a few cloves, boil a kettle, let the water cool down to room temp, put the cloves in a stir about, let it sit for an half hour, then syringe little drops couple times a day into your ear, it works, an no side effects.
Antibiotics kill your good bacteria as well as bad, leaving your immune system vulnerable, ear infections are bacteria, virus or fungus, an garlic is great at killing all of the above safely.