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Allergies are abnormal reactions of the immune system that occur in response to otherwise harmless substances.
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An allergy is an exaggerated immune response or reaction to substances that are generally not harmful. See also: Allergic conjunctivitis; Allergic reactions; Allergy testing; Allergy to mold, dander, dust; Atopic dermatitis (eczema; Contact dermat...
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Allergies are abnormal reactions of the immune system that occur in response to otherwise harmless substances.
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Physical allergies are allergic reactions to cold, sunlight, heat, or minor injury.
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Allergies are abnormal reactions of the immune system that occur in response to otherwise harmless substances.
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Allergies are abnormal reactions of the immune system that occur in response to otherwise harmless substances.
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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. Worldwide, adverse reactions to fo...
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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 schoo...
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A specific allergy is not usually inherited, but your tendency to develop allergies is often passed down through families. If both parents have allergies, their child is likely to have allergies. However, your chance of developing allergies seems ...
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Rosacea is a skin disease typically appearing in persons during their 30s and 40s. It is marked by redness (erythema) of the face, flushing of the skin, and the presence of hard pimples (papules) or pus-filled pimples (pustules) as well as small, ...
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Rosacea is a chronic skin condition involving inflammation of the cheeks, nose, chin, forehead, or eyelids. It may appear as redness, prominent spider-like blood vessels, swelling, or skin eruptions similar to acne.
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Rosacea is a skin disease typically appearing in people during their 30s and 40s. It is marked by redness (erythema) of the face, flushing of the skin, and the presence of hard pimples (papules) or pus-filled pimples (pustules), and small visible ...
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Head lice are tiny insects that live on the scalp. They can be spread by close contact with other people. These lice only live in hair and occasionally eyebrows and eyelashes. See also: Body lice; Pubic lice.
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Parasitic insects that live on hair. Infestation with head lice, also called pediculosis, is a common occurence in schools and day care centers. Head lice are parasitic insects that live on hair. The adults feed on blood from the scalp, causing in...
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