Heat urticaria

Heat Urticaria

Heat Urticaria (pronounced: ur-ti-ka-ri-a) is a rare form of chronic urticaria where hives or large, itchy red rashes, form on the skin after it is exposed to any form of heat, or high temperatures.

Etymology

The term 'Urticaria' is derived from the Latin word 'urtica', meaning 'nettle', and the suffix '-aria', meaning 'pertaining to'. 'Heat' is derived from the Old English 'hǣtu', meaning 'hot' or 'heat'.

Symptoms

The primary symptom of Heat Urticaria is the appearance of 'wheals', or swollen, red bumps on the skin. These wheals can vary in size and appear anywhere on the body that has been exposed to heat. Other symptoms may include itching, burning sensation, and in severe cases, fainting due to a drop in blood pressure.

Causes

Heat Urticaria is caused by an allergic reaction to heat. The exact cause of this allergic reaction is not known, but it is believed to be related to the release of histamines in the skin when it is exposed to heat.

Diagnosis

Diagnosis of Heat Urticaria is typically made through a physical examination and a detailed medical history. In some cases, a Dermatologist may perform a heat provocation test to confirm the diagnosis.

Treatment

Treatment for Heat Urticaria primarily involves avoiding heat and hot environments. Antihistamines may also be prescribed to help manage symptoms. In severe cases, a type of medication called a leukotriene receptor antagonist may be used.

Related Terms

• Chronic Urticaria
• Dermatologist
• Histamine
• Antihistamines
• Leukotriene receptor antagonist

External links

• Medical encyclopedia article on Heat urticaria
• Wikipedia's article - Heat urticaria

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