Idiopathic recalcitrant facial flushing syndrome.

This report neologizes a new syndrome name, idiopathic recalcitrant facial flushing syndrome, to describe all cases of persistent facial flushing with unknown etiology. Three cases of recalcitrant flushing are described. Therapy with a variety of modalities, monitored objectively with laser Doppler velocimetry, proved unsuccessful. Some investigational and management aspects of difficult cases of idiopathic flushing are reviewed.