Is an allergic reaction related to immune system?
1 Answer
Allergies are a number of conditions caused by hypersensitivity of the immune system to something in the environment that usually causes little or no problem in most people.
Explanation:
The developement of allergies is due to both genetic and environmental factors. While the environment plays a role in the development of allergy, there is a greater risk of developing allergic conditions, if a person has a family history of allergy.
Allergic reactions maybe caused by dust, pollen, certain foods, insect stings, and reactions to medications like aspirin and antibiotics like penicillin.
Common allergies include hay fever, atopic dermatitis, allergic asthama and anaphylaxis.
The underlying mechanism involves immunoglobulin E antibodies binding to an allergen and then to a receptor on the mast cells, where it triggers the release of inflammatory chemicals like histamines.
The treatment of allergies include avoiding known allergens and the use of medications such as steroids and antihistamines. In severe reactions injectable adrenaline is recommended.
Although many individuals outgrow allergies over time, immunity to an allergy can also develop at any age during adulthood.
