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Allergies

Allergies arise if the body’s immune system overreacts to foreign substances that are usually harmless such as pollen or certain foods. Many allergens can be avoided. More persistent symptoms can be treated with medication.

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Popular in Allergies

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    Allergies

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    Food allergies

    In food allergies, even small amounts of the food can be enough to trigger an allergic reaction (e.g. itching and swelling in the mouth and throat, o...

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    Dust mite allergies

    Dust mite allergies usually develop in childhood or puberty. The symptoms (such as sneezing) aren’t actually caused by the dust itself, but by substa...

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    Insect venom allergies

    We all get stung or bitten by insects every now and then – and most people end up with a small, red, itchy bump as a result. But those who are allerg...

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    Hay fever

    If you have hay fever, you're not alone: About 1 in 4 people have this allergy. Various medications and allergen-specific immunotherapy often provide...

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