Allergic rhinitis
Rhinitis is an inflammation of the mucous membranes of the nose; in allergic rhinitis this inflammation is caused by exposure to allergens such as pollen, house dust mites or animal dander.
Atopy
A genetically determined pre-disposition to develop certain diseases (asthma, allergic rhinitis, atopic eczema) on the basis of a hypersensitivity of the skin and mucous membranes to environmental substances. Atopy is associated with increased IgE production and an altered nonspecific reactivity.
Eczema
A generic term for an inflammatory condition of the skin.
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Erythema
Redness due to capillary dilation.
Folliculitis
An inflammatory reaction of the hair follicles.
Papule
A circumscribed, solid elevation on the skin.
Pyoderma
A pus-forming infection of the skin.
Stigma
Generally means visible evidence of disease.
Vesicle
A small circumscribed skin elevation containing fluid.
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