The eustachian tube is a channel that connects the ear to the back of the nose. If the eustachian tube is not working appropriately or swollen it can cause ear symptoms. Common symptoms from eustachian tube dysfunction are muffled hearing, ear plugging sensation, pressure in the ear, ringing in the ear, and trouble equalizing the ears during air travel or while diving under water. The classic treatment for patients with eustachian tube dysfunction is either nasal steroid sprays such as Flonase or placing a tube in the ear drum to ventilate the ear. To learn more about other treatments of eustachian tube dysfunction such as balloon dilation click here.