Allergic rhinitis |
Seasonal, perennial, occupational allergic rhinitis |
Nonallergic rhinitis |
Perennial rhinitis with nonallergic triggers |
Idiopathic rhinitis (basophilic nasal disease, NARES, vasomotor rhinitis) |
Atrophic rhinitis |
Chronic sinusitis |
Drug induced |
Metabolic conditions (acromegaly, oestrogen related, hypothyroidism) |
Structural causes (e.g. nasal polyps, septal deviation, adenoid hyperplasia) |
Neurogenic (e.g. nociceptive, irritant) |
Vasculitis/autoimmune and granulomatous diseases |
NARES: nonallergic rhinitis with eosinophils syndrome.