Mentione any one allergic substance which causes allergy reactions to you. write down the symptoms and few ways to prevent it.
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Allergy is caused due to mold spores, pollen, certain foods. The symptoms are sneezing wheezing, shortness of breath .
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Answer: An allergen is a substance that can cause an allergic reaction. After being exposed to a substance such as bee sting venom, the person's immune system becomes sensitized to it. When the person is exposed to that allergen again, an allergic reaction may occur. Anaphylaxis happens quickly after the exposure
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