Skin Rashes
Common Skin Problems:
There are more than a thousand conditions that may affect the skin but most skin diseases can be categorized according to nine common types.
� Rashes.
A rash is an area of red, inflamed skin or a group a individual spots. These can be caused by irritation, allergy, infection an underlying disease, as well as by structural defects - for example blocked pores or malfunctioning oil glands. Examples of rashes dude acne, dermatitis, eczema, hives, pityriasis rosea, and psorasis.
� Viral infections.
These occur when a virus penetrates the stratum corneum and infects the inner layers of the skin. Example viral skin infections include herpes simplex, ...
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cellulitis, and Lyme disease. Antibiotics are effective against bacterial infections.
� Fungal infections.
Harmless fungi are always present on surface of the skin, and infection occurs when these organisms entry into the body These infections are usually superficial, affecting the skin, hair, and nails; examples include athlete�s foot, lock itch, and ringworm. However, in people with suppressed immune systems or who have been taking antibiotics long-term, the fungi may spread to deep within the body, causing more serious disease.
� Parasitic infections.
These infections occur after exposure to parasites such as lice and scabies.
� Pigmentation disorders.
The amount of pigment in the skin is determined by the amount of melanin being produced by the body Loss of pigment (hypo pigmentation) can be caused by an absence of melanocytes, malfunctioning cells, exposure to cold or chemicals, or some types of infection. An increase in pigment ...
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elastin within the dermis, which results in sagging skin. Rosacea is a long�term disorder in which the skin of the face becomes red and develops pimples, lesions, and more rarely enlargement of the nose. Its cause is unknown. Spider veins and varicose veins become apparent when blood vessels enlarge and become visible through the surface of the skin.
EPIDERMIS
The epidermis, the top most layer of skin, is only 0.1 to 1.5 millimeters thick. It is made up of five layers: the basal cell layer, the squamous cell layer, the stratum granulosum, the stratum lucidum, and the stra-tum corneum. Working together, these layers continually rebuild the surface of the skin from within, ...
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"Skin Rashes." Essayworld.com. March 30, 2011. Accessed November 28, 2024. http://www.essayworld.com/essays/Skin-Rashes/97214.
"Skin Rashes." Essayworld.com. March 30, 2011. Accessed November 28, 2024. http://www.essayworld.com/essays/Skin-Rashes/97214.
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