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It is generally agreed that the functions of the nasal accessory sinuses are (1) lightening of the facial bones, (2) warming and moistening of the inspired air and (3) imparting resonance to the voice. In order to maintain these functions, the sinuses must be properly aerated and properly drained, and the mucous membrane must be in healthy condition. When infection of the sinuses occurs, these conditions change. The mucous membrane becomes swollen, the openings of the sinuses are closed or obstructed, and aeration and drainage are interfered with. When medicines are applied locally, the main purpose is to shrink the mucosa so that the openings become clear enough for aeration and drainage. Even when operation, the last resort of treatment, is employed, the primary objectives are aeration and drainage. Aeration and drainage, therefore, are the great desiderata.
All physicians experienced in the treatment of paranasal sinusitis dread radical operations. They