Allergic rhinitis is the most common allergic disorder and often coexists with asthma, sinus disease, eczema and conjunctivitis. It typically causes symptoms such as sneezing, itchiness, a blocked or runny nose. It involves inflammation of the inside of the nasal vault as a result of an allergen. Common allergens include dust, pollen, pet hair, dander or mould. Allergic rhinitis is divided into seasonal or perennial rhinitis. Allergic rhinitis is your immune system triggering a response to an allergen which results in inflammation of the nasal mucosa and production of mucous. Allergen avoidance is often a first line of treatment. If your symptoms are persisting for more than 12 weeks and are adversely affecting your life such as your sleep, ability to exercise or performance at work or school. Your ENT surgeon may also request a CT scan of the sinuses, radio-allergosorbent testing (RAST) or skin prick testing. There are various forms of medical treatment including nasal saline douching, intranasal corticosteroids or oral antibiotics. If a concerted effort is made by the patient with medical treatment and it fails, there are surgical options.