Nasal Crusting Management and Treatment

Clinical Context and Significance

The American Academy of Allergy, Asthma, and Immunology recommends that nasal crusting is a cardinal feature of atrophic rhinitis, characterized by progressive atrophy of the nasal mucosa, nasal dryness, and fetor, with abnormally wide nasal cavities on examination 1, 2
Secondary atrophic rhinitis most commonly results from chronic sinusitis or excessive surgery to the nasal turbinates, and presents similarly with crusting and dryness 2
Nasal crusting can also indicate rhinitis medicamentosa when associated with prolonged use (>10 days) of topical decongestants like oxymetazoline, which causes reduced mucociliary clearance due to loss of ciliated epithelial cells 2, 3

The American Academy of Otolaryngology-Head and Neck Surgery recommends continuous nasal hygiene with intranasal irrigations using saline or sodium bicarbonate solution as the mainstay of treatment for nasal crusting, with periodic debridement of crusts if necessary 1, 2
Buffered hypertonic (3%-5%) saline irrigation may have superior anti-inflammatory effects and better ability to thin mucus compared to isotonic saline 4
For patients with allergic rhinitis and nasal crusting, the American Academy of Allergy, Asthma, and Immunology recommends intranasal corticosteroids (fluticasone, mometasone, budesonide) as first-line therapy for moderate to severe symptoms 5, 6
Topical or systemic antibiotics are indicated when purulent nasal secretions appear, suggesting secondary bacterial infection of the crusted nasal mucosa 1, 2

The American Academy of Otolaryngology-Head and Neck Surgery recommends never using prolonged topical decongestants (oxymetazoline, phenylephrine) beyond 3-5 consecutive days, as they cause rebound congestion, rhinitis medicamentosa, and worsening of nasal crusting 3, 4, 6
Antihistamines have no role in symptomatic relief for nonatopic patients and may worsen congestion by drying the nasal mucosa, potentially exacerbating crusting 4
Avoid excessive nasal debridement or turbinate surgery, as this can lead to secondary atrophic rhinitis with persistent nasal dryness, reduced nasal mucus, and decreased sense of well-being 7