What is allergy?
Allergy is an exaggerated immune reaction to a substance that is harmless to most people.The allergic immune system treats the substance (called allergens) as a harmful substance and reacts inappropriately, causing symptoms. In an attempt to protect the body, an allergic person’s immune system produces antibodies called immunoglobulin E.These antibodies stimulate the mast cells, they release chemicals, including histamine, to protect against allergens.
The release of these chemicals that cause allergic reaction affects the eyes, nose, throat, lungs, skin, gastrointestinal tract in an attempt to remove allergens body.
Following exposure to the same allergen will trigger the same allergic response.The tendency to develop allergies is often hereditary, which means it can be transmitted genetically. However, if parents have allergies does not mean that all children will be allergic, but were more likely to develop allergies.A small number of children with allergies do not have an allergic family member.
The child who is allergic to a substance is likely to be allergic to other things.