TYPES OF ALLERGIES
Keywords:
Types of allergies, hypersensitivity reactions, IgE-mediated allergy, food allergy, drug allergy, environmental allergy, anaphylaxis, allergens, immunotherapy, avoidance.Abstract
Allergies represent an abnormal immune response of the body to normally harmless substances known as allergens. This hypersensitivity reaction occurs when the immune system mistakenly identifies these substances as threats and mounts an exaggerated defense. Allergies are among the most common chronic conditions worldwide, affecting millions of people and significantly impacting quality of life. They can manifest in various forms, ranging from mild symptoms like sneezing and itching to severe, life-threatening reactions such as anaphylaxis. This article provides a comprehensive overview of the different types of allergies, including their classification, underlying mechanisms, common triggers, clinical manifestations, diagnostic approaches, and management strategies. Understanding the various types of allergies is essential for accurate diagnosis, effective prevention, and appropriate treatment in clinical practice.
References
1. Guyton and Hall Textbook of Medical Physiology
2. Robbins and Cotran Pathologic Basis of Disease
3. Gray’s Anatomy
4. StatPearls – Allergy (NCBI Bookshelf)
5. American Academy of Allergy, Asthma & Immunology (AAAAI)
6. World Health Organization – Guidelines on allergic diseases
7. International Association for the Study of Pain (IASP) and related immunology literature
