Allergic rhinitis is an IgE-mediated inflammatory disorder of the nose, which occurs when the nasal mucosa is exposed to allergens, triggering histamine and other inflammatory mediators that act on cells nerve endings and blood vessels causing symptoms such as sneezing, nasal itch, discharge and congestion. Allergic rhinitis maybe classified according to timing, frequency and persistence of symptoms, can range from mild to severe and can be caused by genetic or enviromentall factors