Our ears are filled with air and closed to the outside world. The thinest of the walls of the room is the eardrum. The relationship and balance between the ear cavity chamber and the outside world is achieved by means of a duct that carries air from the nasal region to the ear cavity. The name of this channel is “Eustachian Tube.. Depending on the nature of ear diseases, it is possible to treat them with different surgeries.
Ear diseases and surgeries are highly technical issues, so I strongly recommend that you stick to your doctor's experience and recommendations.