Allergic Rhinitis-Phenotypes Challenges Therapeutic Approach and Role of Montelukast Fexofenadine Combination
Atopic diseases are becoming increasingly prevalent worldwide, and allergic rhinitis (AR), an IgE-mediated inflammatory disease, is one among them. Globally, up to 25% of children and up to 40% of adults are affected by allergic rhinitis. Allergic rhinitis affects about 22% of adolescents in India, and the incidence seems to be continuously rising. (1) Disease Burden and Phenotypes: Allergic rhinitis has distinct traits and may be the most troublesome of all the many allergic illnesses. The disease has a complex etiology, like many other chronic diseases. Several hereditary and environmental factors influence the pathophysiologic processes of AR. Each stage in the pathophysiologic process of AR has unique molecular characteristics. (2) AR is the most common phenotype of rhinitis. On the basis of aetiology, other phenotypes of rhinitis are classified into allergic (IgE mediated), non-alergic non-infective rhinitis (drug-induced, vasomotor rhinitis, hypothyroidism, etc), infectious ...