Allergic contact dermatitis (ACD) is a form of contact dermatitis that is the manifestation of an allergic response caused by contact with a substance; the other type being irritant contact dermatitis (ICD).
Although less common than ICD, ACD is accepted to be the most prevalent form of immunotoxicity found in humans. By its allergic nature, this form of contact dermatitis is a hypersensitive reaction that is atypical within the population. The mechanisms by which these reactions occur are complex, with many levels of fine control. Their immunology centres around the interaction of immunoregulatory cytokines and discrete subpopulations of T lymphocytes.
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Famous quotes containing the word contact:
“There is an eternal vital correspondence between our blood and the sun: there is an eternal vital correspondence between our nerves and the moon. If we get out of contact and harmony with the sun and moon, then both turn into great dragons of destruction against us.”
—D.H. (David Herbert)