Management of Allergic Rhinitis
Classification of Allergic Rhinitis
Use both the traditional temporal classification (seasonal/perennial) and the ARIA frequency/severity system to fully characterize your patient's allergic rhinitis, as these complementary approaches define different patient populations and guide treatment selection. 1
Temporal Pattern Classification
- Seasonal allergic rhinitis occurs only during specific pollen seasons when outdoor allergens are present 2, 1
- Perennial allergic rhinitis causes year-round symptoms from indoor allergens including dust mites, mold, animal dander, and occupational allergens 2, 1
- Episodic allergic rhinitis describes sporadic symptoms from infrequent exposures (e.g., visiting a home with pets) 1
- Many patients have perennial symptoms with seasonal exacerbations, representing significant overlap between categories 1
ARIA Frequency Classification
- Intermittent: symptoms <4 days per week OR <4 weeks per year 2, 1, 3
- Persistent: symptoms >4 days per week AND >4 weeks per year 2, 1, 3
Important caveat: A patient with symptoms 3 days per week year-round would technically be "intermittent" but clinically resembles "persistent" disease—use clinical judgment to select the most appropriate category 2
ARIA Severity Classification
Mild allergic rhinitis is defined by the absence of ALL of the following 4, 1:
- Sleep disturbance
- Impairment of daily activities, leisure, or sports
- Impairment of school or work performance
- Troublesome symptoms
Moderate-severe allergic rhinitis has ONE OR MORE of these quality-of-life impacts 4, 1, 3
Clinical Reality Check
- 44% of patients classified as "seasonal" by traditional criteria have "persistent" disease by ARIA classification 1
- 44% of traditional "perennial" patients are reclassified as "intermittent" by ARIA 1
- Mixed rhinitis (combined allergic and nonallergic) occurs in 44-87% of allergic rhinitis patients and is more common than pure forms 1
Stepwise Pharmacologic Management
Mild Intermittent or Mild Persistent Allergic Rhinitis
Start with either a second-generation oral H1-antihistamine (cetirizine, fexofenadine, desloratadine, loratadine) OR an intranasal antihistamine (azelastine, olopatadine) as first-line monotherapy. 3
- Second-generation oral antihistamines are particularly effective for histamine-mediated symptoms: itching, sneezing, and rhinorrhea 5
- Intranasal antihistamines provide rapid symptom relief 3
- Both options are appropriate initial choices based on patient preference and symptom pattern 3
Persistent Moderate-Severe Allergic Rhinitis
Intranasal corticosteroids (fluticasone, triamcinolone, budesonide, mometasone) are the most effective treatment and should be first-line therapy for persistent symptoms affecting quality of life. 6, 3
- Intranasal corticosteroids are superior to all other medication classes for nasal congestion, which is driven by type 2 inflammation 5
- They address the underlying inflammatory process rather than just symptom relief 6
- Combination therapy with intranasal corticosteroid PLUS intranasal antihistamine provides greater symptomatic relief than monotherapy and should be used for inadequate response to corticosteroid alone 7, 3
Second-Line Therapies for Inadequate Response
When intranasal corticosteroids (with or without intranasal antihistamine) fail to control symptoms, add 6:
- Oral decongestants (pseudoephedrine) for severe nasal congestion—use cautiously and short-term due to cardiovascular effects 6
- Leukotriene receptor antagonists (montelukast) as adjunctive therapy 6
- Intranasal cromolyn (requires frequent dosing, less effective than corticosteroids) 6
- Intranasal anticholinergics (ipratropium) specifically for profuse rhinorrhea 7
Allergen Immunotherapy
Consider subcutaneous or sublingual immunotherapy when usual pharmacologic treatments do not adequately control symptoms, particularly in patients with coexisting allergic asthma—this is the only disease-modifying intervention available. 7, 6
Essential Non-Pharmacologic Management
Educate patients about allergen avoidance specific to their sensitization pattern identified by skin testing or specific IgE testing. 3, 6
- Allergen avoidance is foundational but must be tailored to the individual's specific allergen triggers 3
- Nasal saline irrigation is safe, inexpensive, and effective for removing secretions, allergens, and mediators; hypertonic solutions provide additional decongestant activity 5
Common Pitfalls to Avoid
- Do not use mite-proof mattress/pillow covers—evidence does not support their efficacy 6
- Avoid intranasal decongestant sprays (oxymetazoline, phenylephrine) for more than 3-5 days due to rebound congestion (rhinitis medicamentosa) 7
- Do not rely solely on antihistamines for nasal congestion—they are ineffective for this inflammation-driven symptom 5
- The FDA continues using seasonal/perennial terminology for medication approval, making this classification practically relevant for prescribing 1