Erythromelalgia is a uncommon neurological disorder characterized by intermittent episodes of intense painful burning, redness, and increased temperature in the appendages, particularly hands and feet. The name “erythromelalgia” is taken from the Greek words “erythros” meaning red, “melos” meaning limb, and “algos” meaning suffering. https://www.phlebotomytrainingtoday.com/what-is-erythromelalgia/