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Dyshidrosis is a type of dermatitis, characterized by itchy vesicles of 1–2 mm in size, on the palms of the hands, sides of fingers, or bottoms of the feet. [8] Outbreaks usually conclude within three to four weeks, but often recur.
Calluses have also been known to develop on the forehead from the frequent prostrations required in Muslim prayer; known as a prayer bump or zebiba, such calluses are considered marks of piety in some Muslim countries, and people have been known to take special steps, such as praying on straw mats, to encourage the callus to develop. [21]
Diagnosis is typically based on examination. The ability to shine through the bump or any past decrease in size supports the diagnosis of the bump as a ganglion cyst. [4] Ganglion cysts are usually obvious upon observation. Medical imaging may be considered on infrequent occasions to rule out another diagnosis. [3] [4] Treatment is not necessary.
The ring finger followed by the little and middle fingers are most commonly affected. [2] It can affect one or both hands. [ 8 ] The condition can interfere with activities such as preparing food, writing, putting the hand in a tight pocket, putting on gloves, or shaking hands.
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 ...
Writer's cramp first affects an individual by interfering with their ability to write, especially for prolonged periods of time. [ 2 ] Epidemiologic studies report a prevalence of 7–69 per million population for writer's cramp, [ 5 ] which explains its recognition as a rare disease , like all other forms of dystonia .
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A herpetic whitlow is a herpes lesion , typically on a finger or thumb, caused by the herpes simplex virus (HSV). Occasionally infection occurs on the toes or on the nail cuticle. Herpes whitlow can be caused by infection by HSV-1 or HSV-2. [1]