Overview
Allergic rhinitis is an immune response to airborne substances such as pollen, dust mites or animal dander.
Symptoms
Sneezing, blocked or runny nose, itchy eyes and post-nasal drip are common.
Causes
Symptoms occur after exposure to allergens. Seasonal and year-round patterns are both possible.
Treatment and care
Reducing exposure and using clinician-recommended treatment can help control symptoms. Breathing difficulty requires prompt medical advice.