Category

Allergy

Anaphylaxis

A potentially life-threatening reaction What is anaphylaxis? Anaphylaxis (an-a-fi-LAK-sis) is a serious allergic reaction that can cause death. It can happen in people who have allergies or asthma, and it may be caused by a number of normally harmless things called allergens....
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Food Allergy

Food allergy is an abnormal response to a food triggered by the body’s immune system. Food allergy refers to a particular type of response of the immune system in which the body produces what is called an allergic, or IgE, antibody to a food. (IgE, or immunoglobulin E, is a type...
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Sinusitis

Sinuses are hollow cavities found in the skull that contain a layer of mucus and cells that help trap and expel bacteria and other pollutants. Sinuses are found behind and between the eyes, behind the cheekbones, and in the forehead. When the lining of the sinuses become...
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Insect Allergy

People who have an insect sting allergy suffer a stronger-than-normal reaction to insect stings due to an overreaction of their immune systems. Their immune systems produce antibodies (which in turn release histamines) in reaction to the insect’s venom. Whereas most people...
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Drug Allergy

Drug allergies occur when a person’s immune system develops antibodies in reaction to the presence of foreign proteins in the drug. The next time the drug is introduced into the bloodstream, those antibodies release histamines, which cause symptoms ranging from a mild rash...
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