Depends: It depends on the type. Sinusitis associated with a viral infection usually resolves in less than 10 day without treatment. Acute bacterial sinusitis from 5-10 days depending on the type of antibiotic. Chronic sinusitis is tricky and often takes weeks (often along with prednisone) to respond if there is a response at all.
Answered 5/1/2018
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A doctor has provided 1 answer
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