Winter weather can pose threat for allergy sufferers - Brief Article

AORN Journal,  Jan, 2003  

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Fluctuating winter temperatures can cause cold-induced urticaria for people who suffer from allergies, according to a Dec 5, 2002, news release from the American Academy of Allergy, Asthma and Immunology. Approximately 25% of the US population will experience urticaria, which is characterized by an outbreak of itching, burning, or stinging hives at least once in their lifetime. The intensity of these symptoms can disrupt the allergy sufferer's normal activities; however, this condition often remains undiagnosed.

A person exposed to rapidly changing temperatures can develop cold-induced urticaria symptoms within minutes. Hives can develop when skin is exposed to cold or warmed after exposure to cold. The hives result from histamine, which is produced in larger amounts when the body is exposed to cold.

People who think they are affected by cold-induced urticaria should see an allergist or immunologist to help identify the cause of symptoms. Antihistamines can alleviate discomfort for the majority of sufferers. Urticaria also can be caused by the immune system's overreaction to foods, such as eggs, nuts, and shellfish; medications, such as penicillin; infection; insect stings; and blood transfusions.

Surviving Winter's Itch: The AAAAI Offers Advice on Cold-induced Urticaria (news release, Milwaukee: American Academy of Allergy, Asthma end Immunology, 5 Dec 2002) http://www.aaaai.org/media/news_releases /2002/12/120502.html (accessed 6 Dec 2002).

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