Nasal allergies, also known as allergic rhinitis, are a type of allergic reaction that affects the nose. Symptoms of nasal allergies include sneezing, runny nose, congestion, and itchy eyes, nose, and throat. Allergens such as pollen, dust mites, and pet dander can trigger nasal allergies. Treatment for nasal allergies includes avoiding allergens, taking medications, and using nasal sprays.