You have swimmers ear sounds like. you can go to the doctor for meds, or you can go the grocery store and get one of those solutions that cleans out ear wax, and has a bulb with it. Try that to help remove the water. The bulb I mean.
Lay on your bed with the ear that has water in it down toward the bed. Take the palm of your hand slightly cupped and press it against the ear so that it seals air tight. Then quickly pop your palm off your ear and it should pull the water out of you ear