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  2. Antigen - Wikipedia

    en.wikipedia.org/wiki/Antigen

    An illustration that shows how antigens induce the immune system response by interacting with an antibody that matches the molecular structure of an antigen. In immunology, an antigen (Ag) is a molecule, moiety, foreign particulate matter, or an allergen, such as pollen, that can bind to a specific antibody or T-cell receptor. [1]

  3. Skin allergy test - Wikipedia

    en.wikipedia.org/wiki/Skin_allergy_test

    The test is done to assess allergies to drugs like penicillin [5] or bee venom. Skin testing on back. To ensure that the skin is reacting in the way it is supposed to, all skin allergy tests are also performed with proven allergens like histamine, and non-allergens like glycerin. The majority of people do react to histamine and do not react to ...

  4. These Pictures Will Help You Identify the Most Common Skin Rashes

    www.aol.com/pictures-help-identify-most-common...

    What it looks like: Athlete’s foot is a rash caused by a fungal infection of the skin. People typically develop a rash between the toes, and the skin becomes white, moist, and falls apart ...

  5. Allergen - Wikipedia

    en.wikipedia.org/wiki/Allergen

    After performing the diagnosis, the doctor is able to tell the main cause of the allergic reaction and recommend the treatment to follow. 2 tests have to be done in order to determine the cause: a blood test and a skin test. Allergists do skin tests in one of two ways: either dropping some purified liquid of the allergen onto the skin and ...

  6. Id reaction - Wikipedia

    en.wikipedia.org/wiki/Id_reaction

    The diagnosis is frequently made by treating the initial triggering skin problem and observing the improvement in the eczematous rash. Both the initial skin problem and the id reaction must be observed to make the diagnosis. [5] [6] Not all dyshidrotic rashes are id reactions, but id reactions are often dyshidrotic-like. [2]

  7. Can stress cause a rash? Experts reveal links between ... - AOL

    www.aol.com/news/stress-cause-rash-experts...

    When a stress rash manifests as hives, it looks like raised, itchy bumps on the skin that may be red or pink. Hives can be a collection of individual bumps or connected, making one large bump.

  8. Patch test - Wikipedia

    en.wikipedia.org/wiki/Patch_test

    A patch test relies on the principle of a type IV hypersensitivity reaction.. The first step in becoming allergic is sensitization. When skin is exposed to an allergen, the antigen-presenting cells (APCs) – also known as Langerhans cell or Dermal Dendritic Cell – phagocytize the substance, break it down to smaller components and present them on their surface bound major histocompatibility ...

  9. Doctors Warn Against Dangerous Beauty Trend That Leaves ...

    www.aol.com/lifestyle/doctors-warn-against...

    Before any potential benefits appear, the procedure reportedly initially leaves small, raised bumps under the skin, creating a temporary honeycomb-like texture. This effect has led some to ...

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