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  • reaction
  • A drug allergy is an adverse reaction to a medication, often an antibiotic, that is mediated by the body's immune system. (healthofchildren.com)
  • A drug sensitivity is an unusual reaction to a drug that does not involve the immune system. (healthofchildren.com)
  • E numbers for sulfites as food additives are: Sulfites are counted among the top nine food allergens, but a reaction to sulfite is not a true allergy. (wikipedia.org)
  • Food allergies are immune reactions, typically an IgE reaction caused by the release of histamine but also encompassing non-IgE immune responses. (wikipedia.org)
  • This mechanism causes allergies to typically give immediate reaction (a few minutes to a few hours) to foods. (wikipedia.org)
  • Skin allergies frequently cause rashes, or swelling and inflammation within the skin, in what is known as a "wheal and flare" reaction characteristic of hives and angioedema. (wikipedia.org)
  • doses
  • Although it is very unusual to develop an allergy after months of taking a drug, sometimes children develop a drug allergy after having received multiple doses of the drug. (healthofchildren.com)
  • causes
  • Allergies, also known as allergic diseases, are a number of conditions caused by hypersensitivity of the immune system to something in the environment that usually causes little or no problem in most people. (wikipedia.org)
  • Immunology
  • The 2013 classification and management strategies set forth by the European Academy of Allergy and Clinical Immunology are the most widely accepted. (uspharmacist.com)