Erythromelalgia
Erythromelalgia , formerly known as Mitchell's disease ( after Silas Weir Mitchell ) , is a rare vascular peripheral pain disorder in which blood vessels , usually in the lower extremities or hands , are episodically blocked ( frequently on and off daily ) , then become hyperemic and inflamed . 
<triplet> Erythromelalgia <subj> Silas Weir Mitchell <obj> named after