

Acne
Acne eruptions are caused by problems with the skin's normal processes. Pimples begin in the skin's hair
follicles, which are connected to oil-producing glands. Normally the oil flows out of the hair follicle the the skin's
surface, carrying with it dead skin cells from the follicle lining. During puberty, however, male sex hormones (which
are produced by both sexes) stimulate increased oil production. In acne, the excess oil combines with the dead skin
cells, hair fragments, and bacteria to form plugs that block the follicle pore. Once the plug forms, it may be pushed
to the skin surface and protrude slightly to form a blackhead. Dirt does not cause blackheads. Their dark color
comes from skin pigment mixed into the plug debris. If the plug doesn't reach the skin's surface but continues to
grow in the follicle, it can rupture the follicle wall, discharging its mixture of oil, bacteria, and dead cells into the
surrounding tissue and causing a minor infection. The result is a white-headed acne pimple.
Eczema
Eczema is an allergic inflammation of the skin. It commonly occurs in skin forlds such as the elbows and knees.
In many cases the causes of eczema are not known although stress, food sensitivity, excessive dry or humid climates
and inheritance seem to play a role.
Last updated Jul 12, 1996
Created by SureSoft
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