Allergies are an overreaction of the body's immune system to specific substances that it misidentifies as harmful. This overreaction of the body's immune system is known as an allergic reaction and the substances that cause it are called allergens.
Allergic reactions manifest themselves in the form commonly seen skin and respiratory disorders such as eczema, hives, hay fever, asthma and food allergies. These also include skin and respiratory hypersensitivity reactions to the venom of stinging insects such as wasps and bees. In addition to skin and respiratory systems, allergies can also affect hair, musculoskeletal and digestive system.
While anything under the sun can act as an allergen to an affected person, some of the most common allergens are dust and pollution; cosmetics and perfumes; pollen grains and certain plants; certain foods such as eggs, nuts and coco; industrial wastes and automobiles exhausts; preservatives added in foods; man-made fibres; animal fur; drugs and vaccines, insecticides and pesticides and, even, sunlight.
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iamdahoodedpker 3 years ago