What is an epinephrine injection?
15 Oct 2019 at 12:00am
Epinephrine, or adrenaline, is a hormone. People use injections of synthetic epinephrine to treat severe allergic reactions. Learn more here.

What are the effects of black mold exposure?
18 Sep 2019 at 4:00am
Black mold exposure is no more harmful than exposure to other forms of mold, but it may lead to health issues for certain people. Learn more here.

What to know about condoms and allergies
13 Sep 2019 at 7:00pm
Some people are allergic to latex or other elements of condoms. Learn more about the allergy symptoms that a person may experience after using condoms or similar products during sex.

What to know about nosebleeds with clots
28 Aug 2019 at 2:00am
Several factors can cause nosebleeds with clots, including physical trauma, allergies, and a deviated septum. It is fairly easy to stop a nosebleed at home. Learn more here.

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Allergies

An allergy or Type I hypersensitivity is an immune malfunction whereby a person's body is hypersensitised to react immunologically to typically nonimmunogenic substances. When a person is hypersensitised, these substances are known as allergens. The word allergy derives from the Greek words allos meaning "other" and ergon meaning "reaction" or "reactivity". Type I hypersensitivity is characterised by excessive activation of mast cells by immunoglobulin E resulting in a systemic inflammatory response that can result in symptoms as benign as a runny nose, to life-threatening anaphylactic shock and death.

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