What to know about an itchy mouth
7 Aug 2019 at 12:00am
Itchiness inside the mouth may result from an allergic reaction or a viral or yeast infection. Here, learn what can cause an itchy mouth and what to do about it.

Could the use of stomach acid drugs raise the risk of allergies?
5 Aug 2019 at 4:00pm
A nationwide study of Austrian health records has found a higher rate of prescriptions for allergy drugs following those for stomach acid medications.

What to do about an itchy neck
31 Jul 2019 at 7:00pm
Many things can cause an itchy neck, including skin irritants and allergies. Remedies such as ointments and creams may help. Learn more here.

Why is my chest itchy?
19 Jul 2019 at 6:00pm
Itchy skin, or pruritus, can affect the chest. In this article, learn about the possible causes of an itchy chest, which include skin conditions, kidney problems, and hormonal imbalances. Also, find out more about treatments and remedies for itchy skin.

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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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