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Review
. 2023 Oct 6:4:1229238.
doi: 10.3389/falgy.2023.1229238. eCollection 2023.

Environmental allergen reduction in asthma management: an overview

Duy Le Pham  1   2 , Kieu-Minh Le  3 , Diem D K Truong  3 , Huyen T T Le  4 , Tu H K Trinh  3
Affiliations
Review

Environmental allergen reduction in asthma management: an overview

Duy Le Pham et al. Front Allergy. .

Abstract

Asthma is a prevalent non-communicable disease that affects both children and adults. Many patients with severe, uncontrolled asthma could not achieve total control despite using anti-asthmatic drugs. There is increasing evidence that allergy to environmental allergens, including both indoor and outdoor allergens, is associated with asthma symptoms and severe asthma. Frequently reported sensitized allergens were dust mites, cockroaches, grass pollens, molds, pets, and rodents in allergic asthma patients, although the patterns of widespread allergens differed from each country. Allergen avoidance is the cornerstone of asthma management, especially in sensitized subjects. This review summarizes environmental allergen avoidance and clarifies their effects on asthma control. Despite contrasting results about the impact of allergen exposure reduction on asthma control, several studies supported the beneficial effects of reducing asthma-related symptoms or risk of exacerbations as a nondrug therapy. Identifying environmental allergens is helpful for asthma patients, and further studies on clinically effective avoidance methods are required.

Keywords: aeroallergen; allergen; asthma; asthma management; severe asthma.

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Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

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