Primary erythromelalgia: case report.

Erythromelalgia is a rare clinical syndrome characterized by heat, redness and intermittent pain in the extremities, being most frequent the bilateral development in the lower extremities. Local cooling brings relief to symptoms, while heating, physical exercises and use of stockings/socks intensify the discomfort. This condition can be primary or idiopathic or secondary to haematological disorders and vascular inflammatory and degenerative diseases.