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Cold urticaria (essentially meaning cold hives) is a disorder in which large red welts called hives ( urticaria) form on the skin after exposure to a cold stimulus. [ 1] The hives are usually itchy and often the hands and feet will become itchy and swollen as well. Hives vary in size from about 7 mm in diameter to as big as about 27 mm or larger.
Dr. Sandra Lee, board-certified dermatologist and cosmetic surgeon also known as Dr. Pimple Popper, joined TODAY to separate some summer skin care facts and myths. Myth: The sun is always stronger ...
Schamberg's disease, or progressive pigmented purpuric dermatosis, is a chronic discoloration of the skin which usually affects the legs and often spreads slowly. This disease is more common in males and may occur at any age from childhood onward. This condition is observed worldwide and has nothing to do with race or ethnic background.
Chilblains. Chilblains, also known as pernio, is a medical condition in which damage occurs to capillary beds in the skin, most often in the hands or feet, when blood perfuses into the nearby tissue, resulting in redness, itching, inflammation, and possibly blisters. [ 2]
The skin weighs an average of four kilograms, covers an area of two square metres, and is made of three distinct layers: the epidermis, dermis, and subcutaneous tissue. [1] The two main types of human skin are: glabrous skin, the hairless skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. [3]
Stress can lead to a rash, such as hives, and it can exacerbate other rash-like skin conditions, Hu says. The link between stress and skin goes back to the hypothalamic-pituitary-adrenal axis in ...
Hyperhidrosis. Hyperhidrosis is a medical condition in which a person exhibits excessive sweating, [ 1][ 2] more than that required for regulation of body temperature. [ 3] Although primarily a being physical burden, hyperhidrosis can deteriorate quality of life from a psychological, emotional, and social perspective. [ 4]
Dermatographic urticaria is sometimes called "skin writing", as it is possible to mark deliberate patterns onto the skin. The condition manifests as an allergic-like reaction, causing a warm red wheal to appear on the skin. As it is often the result of scratches, involving contact with other materials, it can be confused with an allergic ...