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UV radiation can provoke or aggravate a number
of dermatoses.
Acute or chronic lupus (lupus erythematosus), an autoimmune
disease accompanied by scaly rashes on both cheeks and the bridge
of the nose, can be aggravated by UVB and/or UVA radiation. In such
cases, sunscreen products with a high sun protection factor should
be used for skin protection, especially for the face.
In the hereditary disease xeroderma pigmentosum, the dark repair
mechanism is defective. Any damage to the DNA caused by UVB can never
be repaired. The consequences are precancerous changes in areas of
exposed skin, even at a young age, followed by skin carcinomas and
melanomas. Absolute avoidance of exposure to UV radiation and use
of sunblock are recommended here.
Herpes simplex recidivans describes a recurring, pantrophic,
facultative neurotrophic viral disease with itching, feeling
of tightness and clustered, crusted blisters, frequently appearing
on the face (lips, nose), sometimes painful and accompanied by regional
swelling of lymph glands. A sunblock or a protective stick with a
high sun protection factor should be used before exposure to the sun.
Atopic dermatitis (neurodermatitis) usually begins in childhood
and is a chronic or chronically recurring dermatitis with a severe
itching, reddening, scaling, weeping and encrustation. In adults the
face, throat, neck, shoulder, chest and joints are mainly affected.
Extra-waterproof, fragrance-free and caring sun protection products
with vitamin E and dexpanthenol are recommended, as their compatibility
has been clinically tested specifically on neurodermatitis patients.
The term psoriasis vulgaris describes a skin disease with sharply
defined reddened patches covered with silvery white scales. For protection
from UV radiation, sunscreen products with micropigments and a high
sun protection factor should be used.
Rosacea describes a disease with intense
sensitivity to external noxae, appearing as a facial rash. The first
stage of the illness is also known as couperose. Any triggering
effect, and particularly UV radiation, must be avoided. To protect
the skin from solar radiation, sufferers should use a sunblock or
daily sun protection product with a high protection factor, especially
for the sensitive facial skin.
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pantrophic: no particular
affinity to any certain tissue
facultatively neurotrophic: occasionally affecting nerves |
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Albinism describes a congenital absence of the pigment melanin,
affecting the whole body or parts of it. The melanocytes are present,
but the enzyme responsible for melanin formation is dysfunctional.
These patients should use a sunblock with a high sun protection factor
and extra water-resistance.
Patients with vitiligo display defined, pigmentless skin areas
occurring roughly symmetrical on both sides of the body. Skin areas
protected from light, such as the armpits and genital area, can also
be affected. Formation of melanin in these areas is not possible,
but horny layer thickening. The affected areas, because of the reduced
capacity of the skin's protective mechanism, must be additionally
protected with suitable sunscreen products with a high sun protection
factor.
Patients with previous UV-induced skin tumours are at a high risk
of developing further skin cancers and therefore must be protected
from all forms of UV radiation. Such patients are generally older,
and so require medicinal sunscreen products with a high sun protection
factor that should also replenish lipids.
SUMMARY:
People with skin disease need sunscreen products with sufficient
protection from UVA and a high sun protection factor. A high
content of micropigments in the sunscreen is also important,
as they do not penetrate the skin, and therefore do not trigger
neither photo nor contact allergies. |
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IUV rays induce cell damage in different layers
of skin whith pigmentation disorders.
People with pigmentation disorders have an especially high risk
of skin damage from UV radiation because their skin totally or partially
lacks its own protective mechanism.
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