Usually: occurs in upper respiratory infections with swelling and obstruction of the Eustachian tube opening in the nasopharynx. When this is blocked by swelling the middle ear cannot equilibrate with atmospheric pressure. But can also be caused by excess ear wax build up.
Answered 1/1/2018
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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