Understanding the mechanisms of airway inflammation is central to understanding the pathophysiology of asthma, followed by treatment aimed at altering this inflammation and its consequences. The relationship between cigarette smoking and airway inflammation is described, but there is relatively little data on the potential effects of smoking on asthmatic airway inflammation and its treatment. Although cigarette smoking is common to both people with and without asthma, and the prevalence of smoking in the asthma group is similar to that of the general population, asthma research tends to focus on individuals who have never smoked. However, there is evidence that smoking may lead to a decrease in the effectiveness of corticosteroids in asthma. This article examines the link between asthma and cigarette smoking, focusing on the effect of tobacco consumption on the patient's response to anti-asthma therapy.

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