Pressure urticaria
Pressure Urticaria
Pressure Urticaria (pronounced: /ˈprɛʃər ɜːrˈtɪkərɪə/), also known as Delayed Pressure Urticaria or DPU, is a subtype of Urticaria or hives that occurs due to pressure applied to the skin. The term originates from the Latin word "urtica" meaning "nettle" and the suffix "-aria" meaning "pertaining to".
Symptoms
The primary symptom of Pressure Urticaria is the development of red, swollen patches or wheals on the skin, typically within 4 to 6 hours after pressure has been applied. These wheals can be accompanied by deep, painful swellings known as angioedema. Other symptoms may include itching, burning, or stinging sensations.
Causes
The exact cause of Pressure Urticaria is unknown. However, it is believed to be an autoimmune disorder, where the body's immune system mistakenly attacks its own tissues. This reaction is triggered by pressure stimuli such as tight clothing, prolonged sitting or standing, or carrying heavy objects.
Diagnosis
Diagnosis of Pressure Urticaria is typically based on the patient's history and physical examination. A dermatologist may perform a pressure test, where a weight is applied to the skin for a certain period of time to see if it triggers a reaction.
Treatment
Treatment for Pressure Urticaria primarily involves avoiding pressure stimuli and taking medications to manage symptoms. These may include antihistamines, corticosteroids, or immunosuppressants. In severe cases, a treatment known as omalizumab may be used.
See Also
References
External Links
External links
- Medical encyclopedia article on Pressure urticaria
- Wikipedia's article - Pressure urticaria
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