How long are you contagious with pink eye?
20 Apr 2018 at 12:00pm
Pink eye is a relatively common eye condition. There are many potential causes, but one of the most significant problems is how not to spread the condition to others. There are different types of pink eye, which can change the length of contagiousness. Knowing the signs can help a person avoid infecting anybody else.

Are RAST or skin tests better for allergies?
17 Apr 2018 at 12:00pm
A doctor may use a number of tests to check whether someone is allergic to certain substances. These include skin tests and blood tests. Blood tests include RAST and ELISA tests. Learn more about the procedure and results of RAST tests, and how this allergy diagnosis test compares with skin tests.

Can allergies cause a fever?
16 Apr 2018 at 10:00am
Many symptoms of an allergy, cold, and flu are similar, including a runny nose and sneezing. However, these conditions affect the body differently, and allergies should not cause flu-like symptoms such as fever or body aches. Learn more about the differences between these conditions and how to identify allergies here.

How do you treat an allergic reaction?
14 Apr 2018 at 7:00am
Allergic reactions are numerous and varied, and the best treatments depend on the specific symptoms, such as rashes or sinus problems, and their severity. Allergies can be treated at home with antihistamines, steroids, and some natural remedies. Severe cases, such as anaphylaxis, need emergency medical attention.

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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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