{pixabay|100|campaign} The paranasal sinuses are commonly the seat of acute or chronic inflammation. Anatomical abnormalities interfering with the normal draining mechanisms predispose to infection. Infection reaches the sinuses from the nose, mouth, tonsils, nasopharynx, and the upper canines or molars. The bacterial flora are often mixed, including streptococci, staphylococci, pneumococci, Klebsiella, E.Coli and anaerobes. The…

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