This document discusses occupational irritant rhinitis and nonallergic rhinitis. Occupational irritant rhinitis can be caused by exposure to irritants like acids or air pollution and results in nasal mucosal ulceration or perforation. Symptoms include nasal congestion, rhinorrhea, and sneezing. Nonallergic rhinitis has no allergic basis and can be triggered by stimuli like changes in temperature, air movement, or light exposure. Treatment focuses on removing the irritant trigger and may include nasal steroids, antihistamines, or decongestants.

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