Rhinitis is an inflammation of the nasal passages that can be triggered by various irritants and allergens. Common causes of rhinitis include:
Environmental Allergens
Environmental allergens such as pollen, mold, dust mites, and pet dander can trigger an allergic reaction in the body. This can lead to inflammation of the nose and nasal passages, which can cause rhinitis.
Irritants
Certain irritants such as smoke, perfumes, aerosols, and chemicals can also irritate the nasal passages and trigger rhinitis.
Infections
Infections such as the common cold and the flu can also cause inflammation of the nasal passages, which can trigger rhinitis.
Medications
Certain medications such as aspirin, ibuprofen, and ACE inhibitors can also trigger rhinitis.