diseases of the skin

Psoriasis
Psoriasis is an inflammatory disease of the skin, the nails, and sometimes the joints. As it affects approximately 2% of the population, it is one of the most common diseases seen by dermatologists. Psoriasis most often appears between the ages of 20 and 30, but can begin at any age. For most people, psoriasis is a lifelong disease that can be controlled with proper treatment but not cured.

Skin lesions usually look like round, red, scaly plaques. They most commonly appear on the elbows, knees, scalp, and lower back, but may occur anywhere on the skin. Most often only a few small places on the body are involved, but occasionally most of the skin surface is involved. In some people the lesions come and go, whereas in other people the lesions are stable or even spread over time. Trauma to the skin can cause new lesions to form. Psoriasis of the skin can have a negative impact on one’s quality of life not only because of the appearance of the skin lesions, but also because the lesions are sometimes itchy.
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Rosacea
A common skin disease that causes redness and swelling on the face. Often referred to as "adult acne," rosacea may begin as a tendency to flush or blush easily, and progress to persistent redness in the center of the face that may gradually involve the cheeks, forehead, chin, and nose. It also may involve the ears, chest and back. As the disease progresses, small blood vessels and tiny pimples begin to appear on and around the reddened area; however, unlike acne, there are no blackheads.

Seborrheic Dermatitis
Seborrheic dermatitis is a common skin disorder that can be easily treated. This condition is a red, scaly, itchy rash most commonly seen on the scalp, sides of the nose, eyebrows, eyelids, skin behind the ears, and middle of the chest. Other areas, such as the navel (belly button), buttocks, skin folds under the arms, axillary regions, breasts, and groin, may also be involved.