We see them often: Causes of retention cysts are unknown; as much as we think allergy plays a role others appear to have no association. . Usually they aren't painful themselves; but they can enlarge, block passages and contribute to formation of sinus infections, similar to nasal polyps. Headaches? Maybe. Depends. Usually not. Options: oral steroids, surgery, allergy shots; some recommend do nothing. See ENT.
Answered 12/21/2020
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2 doctors weighed in across 2 answers
A doctor has provided 1 answer
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