Guide To The Different Types Of Asthma

Nonallergic Asthma

Nonallergic asthma refers to a type of asthma where an affected individual's immune response is not involved in its pathogenesis and triggers. The only antibodies involved in nonallergic asthma are localized IgE antibodies in the patient's airways. The symptoms in nonallergic asthma are not triggered by an external allergen that activates the immune system, but an external irritant instead. Such triggers include everyday irritants that occur outside of the body, including tobacco smoke, cold air, perfumes, dry air, wood smoke, fireplace smoke, exposure to certain drugs, air pollution, strong chemical odors, and scented products. Irritants that occur inside of an affected individual's body that can trigger symptoms include excessive laughing or crying, mental or emotional stress, anxiety, viral or bacterial infection, fluctuations in hormones, and acid reflux. Nonallergic asthma is diagnosed by ruling out other conditions and types of asthma. Nonallergic asthma patients have a negative result on their aeroallergen spirometry and skin allergy tests.

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