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2. Food allergy - Wikipedia

   en.wikipedia.org/wiki/Food_allergy

   Frequency. ~6% (developed world) [1] [2] A food allergy is an abnormal immune response to food. The symptoms of the allergic reaction may range from mild to severe. They may include itchiness, swelling of the tongue, vomiting, diarrhea, hives, trouble breathing, or low blood pressure. This typically occurs within minutes to several hours of ...

3. Salicylate sensitivity - Wikipedia

   en.wikipedia.org/wiki/Salicylate_sensitivity

   Salicylate sensitivity is a pharmacological reaction, not a true IgE -mediated allergy. However, it is possible for aspirin to trigger non-allergic hypersensitivity reactions. [8] [9] About 5–10% of asthmatics have aspirin hypersensitivity, but dietary salicylates have been shown not to contribute to this. The reactions in AERD (Samter's ...

4. Peanut allergy - Wikipedia

   en.wikipedia.org/wiki/Peanut_allergy

   Frequency. 1.4–2% (Europe and the United States) [11] Peanut allergy is a type of food allergy to peanuts. It is different from tree nut allergies, because peanuts are legumes and not true nuts. Physical symptoms of allergic reaction can include itchiness, hives, swelling, eczema, sneezing, asthma attack, abdominal pain, drop in blood ...

5. List of allergens - Wikipedia

   en.wikipedia.org/wiki/List_of_allergens

   True wheat allergies are very rare; it is estimated to effect 0.1%-2.2% of individuals depending on region. The allergy does not commonly persist into adolescence. Gluten-free foods are safer for wheat allergic patients but they still may theoretically contain wheat's other allergenic proteins.

6. Allergic conjunctivitis - Wikipedia

   en.wikipedia.org/wiki/Allergic_conjunctivitis

   Allergic conjunctivitis ( AC) is inflammation of the conjunctiva (the membrane covering the white part of the eye) due to allergy. [1] Although allergens differ among patients, the most common cause is hay fever. Symptoms consist of redness (mainly due to vasodilation of the peripheral small blood vessels ), edema (swelling) of the conjunctiva ...

7. Skin allergy test - Wikipedia

   en.wikipedia.org/wiki/Skin_allergy_test

   Skin prick test: pricking the skin with a needle or pin containing a small amount of the allergen. [2] Skin scratch test: a deep dermic scratch is performed with help of the blunt bottom of a lancet. [3] Intradermic test: a tiny quantity of allergen is injected under the dermis with a hypodermic syringe. Skin scrape Test: a superficial scrape ...