Related Experiment Video
Updated: May 4, 2026
Author Spotlight: Advancing Allergic Rhinitis Research with Multicolor Immunofluorescence
Published on: September 22, 2023
The association between allergy and chronic rhinosinusitis with and without nasal polyps: an evidence-based review
Kevin F Wilson1, K Christopher McMains, Richard R Orlandi
1Division of Otolaryngology-Head and Neck Surgery, University of Utah, Salt Lake City, UT.
Background:
The relationship between allergy and chronic rhinosinusitis (CRS) remains ill-defined and controversial. The association between the 2 is unclear, making an evidence-based decision of whether to evaluate and treat allergies in CRS patients difficult. The purposes of this systematic review are to (1) examine the relationship between allergy and CRS without nasal polyps (CRSsNP), (2) examine the same for allergy and CRS with nasal polyps (CRSwNP), and (3) recommend evaluation and treatment based on the evidence.
Methods:
A structured literature search was performed to identify articles examining the link between allergy and CRSsNP and CRSwNP. Pertinent articles were examined for evidence for an association between allergy and CRSsNP and/or CRSwNP.
Results:
A total of 24 articles were found that met the inclusion criteria; 18 articles examined the relationship between allergy and CRSwNP, with 10 articles showing an association, 7 articles showing no association, and 1 article showing a possible association. Nine articles examined the relationship between allergy and CRSsNP, with 4 articles showing an association and 5 articles showing no association. Four studies directly compared the role of allergy in CRSwNP and CRSsNP, and, again, the results were mixed. No articles examined the outcomes of CRSsNP or CRSwNP following allergy treatment.
Conclusion:
The role of allergy in CRSwNP and CRSsNP continues to be controversial, with the level of evidence poor. Based on the available data, the recommendation is that allergy testing and treatment are an option in CRSwNP and CRSsNP.
Related Concept Videos
01:28Asthma I: Introduction
01:23Chronic Pharyngitis
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
01:16Drugs Used in Upper Respiratory Disorders: Overview
Antihistamines (e.g., Benadryl) block histamines from binding. Histamines are chemicals released during an allergic reaction in the body. As a...
01:17Drugs Used in Lower Respiratory Disorders: Overview
Bronchodilators, the first step of respiration enhancement, come in various forms, each with its own mechanism...
02:06Allergic Reactions
01:20Asthma: Pathogenesis and Management
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.