environmental allergy

Environmental allergies occur when the immune system overreacts to harmless substances like pollen, dust mites, mold, or pet dander. These substances, called allergens, are harmless to most people, but in allergic individuals, they trigger a reaction characterized by symptoms such as sneezing, nasal congestion, itchy eyes, and coughing. This response involves the release of chemicals like histamine that cause inflammation and other allergy symptoms. Environmental allergies are common and can vary in severity; managing exposure to allergens and using medications can help control symptoms and improve quality of life.