Definition and Historical Context of Allergies The term “allergy,” derived from the Greek meaning “other working” or “altered reaction,” was coined in 1906 by Austrian pediatrician Clemens von Pirquet to describe an exaggerated, detrimental immune response to substances that are harmless to the majority of the population. Medically classified primarily as a Type I hypersensitivity […]
Introduction and Definition of Allergic Rhinitis Allergic Rhinitis (AR), commonly known as hay fever, is a highly prevalent chronic inflammatory condition affecting the nasal passages, triggered by an immunoglobulin E (IgE)-mediated immune response to typically harmless airborne environmental allergens. This condition represents a Type I hypersensitivity reaction, fundamentally rooted in the body’s overreaction to specific […]