Nonallergic rhinitis

Nonallergic rhinitis is a medical condition characterized by chronic sneezing or having a congested, drippy nose without an apparent cause. Unlike allergic rhinitis, which is triggered by the immune system's response to allergens such as pollen or dust mites, nonallergic rhinitis does not involve the immune system.

Symptoms

The symptoms of nonallergic rhinitis are similar to those of allergic rhinitis, but they are not triggered by allergens. Symptoms may include:

• Sneezing
• Runny nose
• Nasal congestion
• Postnasal drip

Causes

The exact cause of nonallergic rhinitis is unknown. However, it is thought to occur due to swollen blood vessels and an accumulation of fluid in the lining of the nose. This can be triggered by a number of factors, including:

• Viral infections
• Certain medications, including aspirin, ibuprofen, and beta blockers
• Changes in weather or temperature
• Consumption of certain foods and beverages, particularly spicy foods or alcohol
• Exposure to irritants such as smoke, perfumes, or cleaning products

Diagnosis

Diagnosis of nonallergic rhinitis typically involves ruling out allergic rhinitis. This may involve skin or blood tests to check for an immune system response to specific allergens. If these tests are negative, a diagnosis of nonallergic rhinitis may be considered.

Treatment

Treatment for nonallergic rhinitis focuses on managing symptoms. This may involve:

• Avoiding known triggers
• Using a saline spray to rinse the nasal passages
• Using nasal sprays or antihistamines to reduce inflammation and congestion

See also

• Allergic rhinitis
• Rhinitis medicamentosa
• Vasomotor rhinitis