Rohan Ameratunga

A/Prof Rohan Ameratunga, assisting with Allergy problems in Auckland Central, Auckland, New Zealand.

The following description is a generic description for the category and does not necessarily reference all the services/ procedures offered by A/Prof Rohan Ameratunga.

An Allergist is concerned with diagnosis and treatment of allergies. An allergy is a hypersensitivity disorder of the immune system. Allergic reactions occur when a person's immune system reacts to normally harmless substances in the environment. A substance that causes a reaction is called an allergen. These reactions are acquired, predictable, and rapid. Allergy is one of four forms of hypersensitivity and is formally called type I (or immediate) hypersensitivity. Allergic reactions are distinctive because of excessive activation of certain white blood cells called mast cells and basophils by a type of antibody called Immunoglobulin E (IgE). This reaction results in an inflammatory response which can range from uncomfortable to dangerous.