Allergic disease, which frequently affects children, adolescents, and young adults, has seen an alarming increase in recent years. At the same time, an explosion of clinical and scientific advances in immunology and allergology have made it imperative that practitioners keep up with the newest knowledge. This is a practical and current overview of the entire field of allergy. This book incorporates colourful and educational illustrations throughout, with succinct information on: complex cell-mediated immune response; methods of in-vivo and in-vitro allergy diagnosis; antihistamine and corticosteroid treatments; prophylaxis and allergen avoidance; psychosomatic disease; and more. The book is part of Thieme’s acclaimed Flexibook series of clinical and basic science pocket guidebooks, which are sold worldwide and have been translated into more than 20 languages.