A member asked:

After putting ice directly on skin with heat rash, i developed itchy rash where blisters are joined red and itchy.was not itchy before it.whats this?

A doctor has provided 1 answer
Dr. Powlin Manuel answered

Specializes in Allergy and Immunology

Cold urticaria: Rarely, you can develop hives due to Exposure to cold temperature. This is called cold urticaria. Though usually harmless, if the reaction affects the whole body, it could turn out to be as serious as any other allergic reaction. Please consult your doctor for some needed tests or to carry medication to deal with an emergency.

Answered 6/23/2014

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