The turbinates are finger-like membrane projections located along each side of the nose. They help to moisturize and filter air flowing through the nasal cavity. Enlarged turbinates caused by allergies, infections, or a deviated septum are often responsible for nasal airway obstruction.
Prescription nasal sprays, antihistamines, and allergy testing and treatment may reduce nasal blockage caused by enlarged turbinates. Surgical reduction of the turbinates (submucous resection inferior turbinates) is a commonly performed nasal procedure by itself or with a septoplasty or sinus surgery.