This textbook on clinical allergy is designed to serve the healthcare professionals in the understanding of diagnosis and treatment of allergic diseases. The contributors of this book were chosen for their specific expertise and interest in their respective areas. This textbook consists of 54 chapters, which practically cover all the aspects of allergy ranging from epidemiology, varying presentation of allergy, diagnosis, and practical approach to the treatment of various allergic diseases. This also includes br>Chapter on aerobiology and pollen Calendar with the use of photographs of allergenic plants mainly found in India. The information in this book has been completed using the latest research, current medical updates and a wealth of experience the authors have gained while treating allergic diseases.