A member asked:

Does dust allergies cause sinusitis? can sinusitis be caused by allergy to dust?

3 doctors weighed in across 2 answers

Yes: Allergy cause inflammation which blocks the sinus cavities and may promote infection.

Answered 6/8/2013

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Yes: Sinuses have tiny openings into the nasal cavity allowing air exchange. When the nasal cavities are "congested" either from allergies (any cause), or a prolonged cold, these openings are blocked. The oxygen in the sinuses then slowly disappear and thus allows excessive growth of bacteria and consequently may cause sinus infections.

Answered 2/22/2013

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