Eustachian tube blocked

The Eustachian tube is a tube that connects the middle ear and the pharynx. Its role is to maintain the balance of air pressure inside and outside the eardrum. The clinical manifestation of the eustachian tube obstruction is that the ear is blocked and uncomfortable. The obstruction of the eustachian tube can cause otitis media and then tinnitus. And chronic rhinitis, sinusitis can also cause eustachian tube obstruction.

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