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    Did you mean Hypersensitivity?
    GlossaryAllergic Reactions (Hypersensitivity)

    immune system overreacts to harmless substances, causing symptoms

    An allergic reaction, also known as a hypersensitivity reaction, occurs when the immune system mistakenly identifies a harmless substance (allergen) as a threat and overreacts to it. This can lead to symptoms ranging from mild, such as itching and sneezing, to severe, such as anaphylaxis, which can be life-threatening. Common allergens include pollen, pet dander, certain foods, and insect stings.

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      Psychoactive Drugs and Skin

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      12 citations, June 2003 in “Journal of the European Academy of Dermatology and Venereology”
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      3 citations, July 2017 in “Elsevier eBooks”
      Skin reactions are a common reason for emergency visits due to drug allergies, with some severe cases needing intensive care.

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