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Asthma is a chronic respiratory ailment that requires careful management due to its varying symptoms and influencing factors. It is characterized by airway inflammation, bronchial hyperresponsiveness, and reversible airflow obstruction, leading to symptoms like wheezing, shortness of breath, chest tightness, and coughing. The symptom frequency and intensity may vary considerably over time. It is also linked to immune system responses to allergens and irritants, highlighting the complex...
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Lower respiratory tract disorders present challenges that often require skilled and nuanced approaches for effective management. Common ailments, such as asthma and chronic obstructive pulmonary disease (COPD), have prompted the development of intricate treatment strategies involving bronchodilators and anti-inflammatory drugs, each tailored to ease breathing and revitalize the lungs.
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Drugs Used in Upper Respiratory Disorders: Overview01:16

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Upper respiratory tract disorders, including viral infections and allergic rhinitis, cause significant discomfort and disrupt daily life. Managing these conditions involves a variety of drugs, such as antihistamines, intranasal steroids, decongestants, antitussives, expectorants, and mucolytics. Specific examples of drugs in each category are provided.
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Related Experiment Video

Updated: Jun 7, 2025

Symptom Assessment of Patients with Allergic Rhinitis Using an Allergen Exposure Chamber
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Minimizing Indoor Allergen Exposure: What Works?

Ramin Beheshti1, Torie L Grant2, Robert A Wood2

  • 1Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States. rbehesh2@jh.edu.

Current Allergy and Asthma Reports
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Reducing indoor allergens like dust mites and pet dander is key for managing allergic rhinitis and asthma. However, evidence on effective environmental control measures and their clinical impact remains mixed.

Keywords:
Allergen Exposure ReductionAllergic RhinitisAllergiesAsthmaIndoor Allergens

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Area of Science:

  • Environmental health
  • Allergology
  • Pulmonology

Background:

  • Indoor allergen exposure is a significant contributor to allergic rhinitis and asthma.
  • Common indoor allergens include dust mites, pets (cats, dogs), rodents, and cockroaches.
  • These allergens are pervasive and challenging to eliminate from homes, complicating reduction efforts.

Purpose of the Study:

  • To review the evidence on the effectiveness of environmental control measures in reducing indoor allergen levels.
  • To assess the potential clinical impact of these measures on allergic disease outcomes.
  • To identify strategies for decreasing the burden of allergic diseases linked to indoor allergens.

Main Methods:

  • Systematic review of existing studies on environmental control measures for indoor allergens.
  • Assessment of data regarding the reduction of specific indoor allergens (e.g., dust mites, pet allergens).
  • Evaluation of clinical outcomes associated with implemented environmental control strategies.

Main Results:

  • Studies show varied results regarding the efficacy of specific environmental control measures.
  • Evidence is mixed on whether reducing indoor allergen levels directly translates to improved clinical outcomes.
  • The effectiveness of strategies like allergen-impermeable bedding, air filtration, and pest control requires further investigation.

Conclusions:

  • Environmental control measures show potential for reducing indoor allergen exposure.
  • The clinical benefit of allergen reduction strategies requires more consistent evidence.
  • Further research is needed to optimize and validate effective interventions for indoor allergen management.