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A rash is a change of the skin that affects its color, appearance, or texture. A rash may be localized in one part of the body, or affect all the skin. Rashes may cause the skin to change color, itch , become warm, bumpy, chapped , dry, cracked or blistered , swell, and may be painful.
Patch: A patch is a large macule equal to or greater than either 5 or 10 mm across, [30] depending on one's definition of a macule. [1] Patches may have some subtle surface change, such as a fine scale or wrinkling, but although the consistency of the surface is changed, the lesion itself is not palpable. [29]
An example of a triad is Meltzer's triad presenting purpura a rash, arthralgia painful joints, and myalgia painful and weak muscles. Meltzer's triad indicates the condition cryoglobulinemia . Huntington's disease is a neurodegenerative disease that is characterized by a triad of motor, cognitive, and psychiatric signs and symptoms. [ 31 ]
Cellulitis. Cellulitis looks like a rash, but is actually an infection of the middle layer of skin, says Dr. Yadav. It causes the skin to become diffusely red, swollen, tender, and hot to the ...
Nummular eczema, also called discoid eczema, is a type of eczema rash that shows up in a distinctive round pattern. The rashes may be itchy, red and raised ovals, the AAD says , and there may be ...
Two drivers emerging from their cars to express anger at a road situation. Road rage is aggressive or angry behavior exhibited by people driving a vehicle. These behaviors include rude and verbal insults, yelling, physical threats or dangerous driving methods targeted at other drivers, pedestrians or cyclists in an effort to intimidate or release frustration.
Butt rash is common, dermatologists say. Here are some of the biggest causes and how to treat them.
In social psychology, hysterical contagion occurs when people in a group show signs of a physical problem or illness, when in reality there are psychological and social forces at work.
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