How is an allergy - risk factors, treatment, and prevention,?

 Allergies are abnormal reactions of the immune system to harmless substances.  However, in allergy sufferers, the immune system is also produced in response to these substances.  Such substances, called allergens, can originate from the patient's natural environment.  Food, medicines, latex products, insect bites most allergies are mediated by a class of antibodies called immunoglobulin e, or age.  When the body is first exposed to an allergen, it produces age.  The Age molecules then bind to receptors on the surface of mast cells and basophils.  Upon re-exposure to the same antigen, the antigen binds to adjacent age molecules.  These chemicals are responsible for vasodilation and increased permeability, mucus secretion, stimulation of sensory nerves, smooth muscle spasms, and the causes of allergic symptoms.  The reaction is immediate and occurs within minutes of exposure to the allergen.  People who are sensitive to certain allergens may also react to other substances containing similar antigens.  For example, people who are allergic to birch pollen may also experience certain reactions.  Inherited is the susceptibility to allergic reactions due to irregularities in building the immune system                                                                                                                                                                                                                                                     Food Allergy,                                                                                                                                                        and hypersensitive reactions are bizarre reactions of the immune machine to innocent materials. But, in allergic reaction sufferers, the immune device is also produced in response to these substances. Such substances, called allergens, can originate from the Patient's natural surroundings. Meals, drug treatments, latex merchandise, insect bites maximum allergic reactions are mediated with the aid of a category of antibodies called immunoglobulin e, or age. When the frame is first uncovered to an allergen, it produces age. The Age molecules then bind to receptors on the floor of mast cells and basophils. Upon re-publicity to the same antigen, the antigen binds to adjacent age molecules. These chemicals are chargeable for vasodilation and expanded permeability, mucus secretion, stimulation of sensory nerves, ease of muscle spasms, and the reasons of allergic signs and symptoms. The reaction is on the spot and happens within mins of exposure to the allergen. Those who are sensitive to positive allergens may also react to different substances containing similar antigens. For instance, people who are allergic to birch pollen may additionally revel in sure reactions. Inherited is the susceptibility to allergic reactions because of irregularities in