Causes Of Sinusitis

Asthma

Over fifty percent of individuals with moderate to severe asthma will have sinusitis. Along with airway constriction, the inflammatory process of this disease releases chemicals known as leukotrienes, which stimulate excessive mucous production and swelling in the airways. Leukotrienes increase vascular permeability leading to increased fluid in the sinuses and airways. Sinusitis can be a result of this combination of decreased airflow and thicker mucus in the paranasal sinus cavities. Treatment for this condition consists of bronchodilators for the immediate reversal of airway constriction and long-term medication that counteracts the effects of leukotrienes. Treatment can reduce the recurrence of sinusitis in many patients, and the treatment of sinusitis has been shown to decrease the severity of breathing problems in a substantial number of patients.

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