A rare medical condition causing burning pain, redness, and heat in the hands and feet, typically triggered by warmth or exercise.
From Greek erythro- (red) + melos (limb) + -algia (pain). Coined in the 19th century to describe a specific vascular disorder affecting extremities with characteristic red discoloration and intense pain.
People with erythromelalgia sometimes have to submerge their hands and feet in ice water just to tolerate the burning sensation—it's so severe that some patients lose sleep or become unable to work, making it one of medicine's most underrecognized pain conditions.
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