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  1. Allergy
    Allergy
    SymptomsCausesDiagnosisTreatmentsClinical trialsRisk factorsPrevalenceComplications

  2. Allergy - Overview

    Over reaction of the immune system to certain foreign substances.

    Symptoms : Symptoms may include sneezing, runny nose, red, watering eyes, vomiting, diarrhea, rashes, and itching.

    Causes : Caused by hypersensitivity of the immune system to certain allergens that may come in contact with the body through inhalation, ingestion, injection, or physical (skin) contact.

    Treatment : Staying away from the allergen is recommended as it cannot be cured; medications can treat symptoms.

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    Hives

    A skin rash with red itchy bumps as a result of allergic reactions of the body.

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    Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/allergies/symptoms-causes/syc-20351497

    Allergies - Symptoms and causes - Mayo Clinic

    • 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. Your immune system produces sub… See more

    Anaphylaxis

    A serious life-threatening allergic reaction which usually occurs within few seconds or minutes of exposure to allergic substances. This involves hives, swelli

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    Food allergy

    An abnormal reaction by the immune system following consumption of a certain food.

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    Source: Focus Medica. For informational purposes only. Consult a medical professional for advice.
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  1. People also ask
    What is a true allergy?
    With this new classification, the word allergy, sometimes clarified as a true allergy, was restricted to type I hypersensitivities (also called immediate hypersensitivity), which are characterized as rapidly developing reactions involving IgE antibodies.

    Allergy - Wikipedia

    en.wikipedia.org
    What are allergies?
    Allergies are a result of your immune system's response to a foreign substance, such as pollen, bee venom, pet dander, or a food that doesn't cause a reaction in most people . Your immune system ...Allergies are a result of your immune system's response to a foreign substance, such as pollen, bee venom, pet dander, or a food that doesn't cause a reaction in most people . Your immune system ...
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    What is an allergy & how does it affect your health?
    What Are Allergies? An allergy is an overactive immune response to a substance (called an allergen) that is usually harmless, such as pollen or dust. Exposure to an allergy causes the body’s cells to release chemicals, such as histamines, that can cause inflammation and swelling that affects the skin, respiratory system, and digestive tract.

    Allergies: Types, Symptoms, Causes, Diagnosis, Treatment and More - H…

    health.com
    What is an allergy & why is it important?
    Last medically reviewed on June 5, 2018 An allergy is an immune system response to a foreign substance that’s not typically harmful to your body. These foreign substances are called allergens. They can include certain foods, pollen, or pet dander.

    Allergies Overview: Symptoms, Treatments, and More - Healthline

    healthline.com
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  2. Cleveland Clinic
    https://my.clevelandclinic.org/health/dise…

    Allergies: Symptoms, Reaction, Treatment

    WebDec 21, 2022 · Allergies are your body’s reaction to normally harmless substances. Allergy symptoms range from mild to life-threatening. Treatments include antihistamines, decongestants, nasal steroids, …

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  3. Healthline
    https://www.healthline.com/health/allergies

    Allergies Overview: Symptoms, Treatments, and More - Healthline

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