 There is evidence that IgE antibodies play a role in chronic sinusitis. The investigators have shown that total IgE levels correlate with the severity of sinusitis, as assessed by CT scan. Staphylococcus enterotoxins cause local increases in total IgE in over 50 of nasal polyp patients. Allergies occur more frequently in patients with chronic sinusitis than in the general population. Elevations in total IgE have been shown to occur in patients with allergic fungal sinusitis and the levels of total IgE decrease with successful treatment. Thus, the investigators speculate that IgE contributes significantly to the pathogenesis of chronic sinusitis. 