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An allergy is an exaggerated immune response or reaction to substances that are generally not harmful. See also: Allergic reactions; Allergy testing; Allergy to mold, dander, dust; Drug allergies; Food allergies; Hay fever.
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Allergies are abnormal reactions of the immune system that occur in response to otherwise harmless substances. Allergies are among the most common medical disorders.
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Allergies are abnormal reactions of the immune system that occur in response to otherwise harmless substances. Allergies are among the most common of medical disorders.
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Physical allergies are allergic reactions to cold, sunlight, heat, or minor injury. The immune system is designed to protect the body from harmful invaders such as germs.
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Allergies are abnormal reactions of the immune system that occur in response to otherwise harmless substances. Allergies are among the most common of medical disorders.
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Allergies are abnormal reactions of the immune system that occur in response to otherwise harmless substances. Allergies are among the most common of medical disorders.
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Dust mites are perhaps the most common cause of nasal allergies. These mites are microscopic organisms that live in bedding, upholstered furniture, and carpets. They thrive in warm, humid conditions.
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Food allergies affect approximately 3 percent of children and 1 percent of adults in the United States. It is estimated that an even larger percentage of the population experiences problems with food intolerance.
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A hypersensitive response by the immune system to a foreign substance that is ordinarily harmless. Allergies account for more office visits to pediatricians than any other ailment, besides the common cold, and are responsible for more missed school days than any other medical problem.
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