What is perioral dermatitis and how is it treated?
19 Jun 2018 at 7:00am
Perioral dermatitis is a rash that affects the skin around the mouth. The cause is unknown, but research suggests that it is a reaction to the misuse of topical corticosteroids. Other triggers may include hormonal changes and allergic reactions. Learn more about perioral dermatitis and how to prevent and treat it here.

Everything you need to know about allergic eczema
18 Jun 2018 at 2:00pm
Allergic eczema, or contact dermatitis, is a skin condition that occurs when a person?s skin comes into contact with an allergen. It causes a dry, red, itchy rash. In this article, learn about the triggers, treatment, prevention, and when to see a doctor. We also provide information on other types of eczema.

What to know about glossitis
14 Jun 2018 at 4:00pm
Glossitis is a condition where the tongue becomes inflamed and swollen. A range of factors, including allergies, anemia, and vitamin B12 deficiencies can lead to glossitis. The best treatment will depend on the underlying cause. Read on for more information about the symptoms, causes, and treatment for glossitis.

What to know about bee sting allergies
9 Jun 2018 at 12:00pm
For people with a bee sting allergy, the summer months can be a scary time. People who have never been stung may have an allergy without knowing it. Allergic reactions to bee stings can range from mild to life-threatening. In this article, learn how to identify a bee sting allergy, along with symptoms and treatments.

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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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