The Eustachian tube is a tiny passageway that connects your middle ear to your throat. It plays a vital role in equalising the pressure in your middle ear. It does so by opening when you sneeze, swallow, or yawn. This mechanism prevents air pressure and fluid from building up inside your ear canal, behind your eardrum.
When the Eustachian tube gets plugged, you may not hear clearly as sounds become muffled. Feeling pressure, pain, and fullness in your ear space is not uncommon either. Allergies
, sinus infections
, the common cold or the flu, can all cause the openings of your Eustachian tube to become partially blocked. Tissue inflammation and mucus secretions are a large part of the reason for the Eustachian tube dysfunction.
Traveling by air
and changes in altitude can also be a reason for your Eustachian tube not to function correctly.