Allergic rhinitis(AR)clinically expressed by sneezing,rhinorrhea,nasal itching and congestion is an allergen-driven mucosal inflammatory disease which is modulated by immunoglobulin E.Epidemiological studies have indicated that prevalence of AR continues to increase,and it has been a worldwide health problem that places a significant healthcare burden on individuals and society.Given the evolving understanding of the process by which an allergen is recognized and the roles of mediators which account for AR ...