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IRRITANT
CONTACT ECZEMA
Detrgents, alkalis, acids,
solvents and abrasive dusts are common
causes of irritant contact eczema. Majority of industrial
irritants causing contact dermatitis come under this
category. Those with fair dry skin and with a family
history of allergic diseases such as asthma, hay fever or
eczema are more vulnerable to irritant contact
dermititis. Napkin eczema in babies come under this type
of eczema.
ALLERGIC CONTACT ECZEM
It is due to delayed hypersensitivity reaction to a
contact with an antigen. Previous exposure to antigen is
required for sensitisation to occur and the reaction is
specific to the antigen or closely related chemical.
COMMON ALLERGENS
:
NICKEL : Jewellery, jeans studs, bra clips.
DICROMATE : Cement,
leather, matches.
RUBBER : Clothing,
tyres, shoes.
COLOPHONY : Sticking
Plaster.
PARAPHENYLENEDIAMINE : Hair dye, Clothing.
BALSUM OF PERU : Perfumes,
Citrus fruits.
PARABENS : Preservatives
in cosmetics and creams.
WOOL ALCOHOLS : Lanolin,
Cosmetics, Creams.
EPOXY RESINS : Resin
Adhesives.
NEOMYCIN, BENZOCAIN : Topical Applications.
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