Hard to say: You can get vitamin c in pill form without risk of allergic response and likely get some from other non citrus sources.Whether this has anything to do with your sinus infections is hard to say, but rather unlikely. Exposure to nasal irritants like smoke or fragrance, allergic triggers, and uri's have more impact on sinus disease frequency.Avoiding such agents and nasal wash decreases frequency.
Answered 9/28/2016
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