A member asked:

During a cat scan dr said i had fluid in my mastoids behind ear. recommended sudafed. will that help? does that mean i have a sinus infection?

A doctor has provided 1 answer
Dr. Gerald Mandell answered

Specializes in Nuclear Medicine

Not necessarily: Fluid can back up into mastoids related to inner ear problems with fluid and sometime infection. Infection in mastoid which can result in necrosis and bone involvement can have fluid in mastoid air cells as well. Sinus infections involve paranasal sinuses frontals (above eyes) ethmoids medial to orbits, and lateral to nose, and maxillary inferior to orbits. These are facial in location.

Answered 11/6/2020

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