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Circumscribed Neurodermatitis
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Lichen simplex
chronicus or localized scratch
dermatitis
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- This is a disease in which nerve
fibers (under the skin) become thickened and scarlike,
causing chronic, itchy inflammation. The cause is not known
but psychological factors are generally believed to play a
role. Appears not to be allergic, affects more women than
men, and is more common among Native Americans and
Asians.
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- Itchy skin lesions
- Lesions become dark, thick, and
leathery with round scaly plaque underneath. The lesions may
have well-defined rectangular borders, or present in oval,
irregular, or angular shapes.
- Exaggerated skin lines in the
lesions
- Usual locales -- nape of the neck,
forearms, area on inside of elbows, wrists, inner thighs,
behind the knees, and lower
legs
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- Topical corticosteroids (super
high-potency, such as Temovate)
- Corticosteroid injections into the
lesions
- Tars in 1% triamcinolone ointment
or anthralin
- Duoderm occlusive dressing for
extended periods.
- Avoid harsh irritating fibers like
wool. Try cotton.
- Avoid excessive drying of skin.
- Avoid excessive itching.
- Soap can further dry the lesions.
- Excessive sweating my make it
worse.
- Use oils and baths to keep skin
moist.
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