Treatment of Nasal Congestion Due to Immunotherapy

Introduction to Treatment

The American Academy of Otolaryngology-Head and Neck Surgery recommends intranasal corticosteroids as the most effective treatment for nasal congestion occurring as a side effect during allergen immunotherapy, providing the most potent anti-inflammatory control of nasal congestion 1, 2

The American College of Allergy, Asthma, and Immunology suggests that intranasal corticosteroids (fluticasone, mometasone, budesonide, or triamcinolone) should be started immediately as they are the most effective pharmacologic treatment for nasal congestion associated with allergic inflammation, with maximum efficacy requiring several days of consistent use 1, 2, 5
The American Academy of Otolaryngology-Head and Neck Surgery advises that the spray must be directed away from the nasal septum to prevent mucosal erosions and potential septal perforation 1, 5

The American College of Allergy, Asthma, and Immunology recommends adding an intranasal antihistamine (azelastine or olopatadine) to the intranasal corticosteroid regimen for moderate to severe symptoms, as this combination provides greater efficacy than either agent alone 1, 2, 4
The American Academy of Otolaryngology-Head and Neck Surgery notes that intranasal antihistamines have clinically significant effects on nasal congestion, superior to oral antihistamines, but may cause sedation and inhibit skin test reactions 6, 7

The American College of Allergy, Asthma, and Immunology suggests that topical oxymetazoline may be added for a maximum of 3 days only to avoid rhinitis medicamentosa (rebound congestion), and the combination of intranasal corticosteroid plus intranasal oxymetazoline is more effective than either monotherapy for severe symptoms 1, 2, 4
The American Academy of Otolaryngology-Head and Neck Surgery warns that prolonged use of oxymetazoline beyond 3-5 days will cause rebound congestion that worsens the underlying problem 1, 2, 5

The American College of Allergy, Asthma, and Immunology recommends nasal saline irrigation as it is beneficial for treating nasal congestion and rhinorrhea, either as monotherapy or adjunctive treatment, with minimal side effects and good patient acceptance 1, 2, 3, 5, 6

The American Academy of Otolaryngology-Head and Neck Surgery advises to continue the immunotherapy regimen unless systemic reactions occur, as immunotherapy is the only treatment that modifies the natural history of allergic disease and provides long-term benefits that persist after discontinuation 1, 3, 4
The American College of Allergy, Asthma, and Immunology suggests reviewing the immunotherapy dosing schedule with the administering physician, as dose adjustments may reduce local reactions while maintaining efficacy 3, 8

The American College of Allergy, Asthma, and Immunology recommends never using oral corticosteroids for routine management of nasal congestion during immunotherapy due to greater potential for long-term adverse effects 1, 6, 7
The American Academy of Otolaryngology-Head and Neck Surgery advises avoiding first-generation antihistamines due to significant sedation, performance impairment, and anticholinergic effects 1, 2, 7