My husband had a fairly serious case of otitis media several years ago. He let it go, but it did not resolve, which resulted in a midnight trip to the ER and a round of antibiotics, which we couldn't get filled until the following morning.
His hearing had become impaired in that ear, and he wondered if it was ever going to come back. It took about three weeks and two rounds of antibiotics before he started hearing in that ear.
The moral of the story is to see a doctor if the pain in your ears lasts more than a couple of days. That's just common sense.