how does elergy hapen to us
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Allergies occur when your immune system reacts to a foreign substance — such as pollen, bee venom or pet dander — or a food that doesn't cause a reaction in most people. ... When you come into contact with the allergen, your immune system's reaction can inflame your skin, sinuses, airways or digestive system.
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Elergy happened to us There are many reasons for it.
Anything which not suited for your skin or any other reason..............
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