“Hemicrania Continua”: A New Clinical Entity or a Further Development from Cluster Headache?: A Case Report

Abstract

A case of "hemicrania continua" after cluster headache in the same subject is described. Indomethacin exerted an absolute, persistent effect on the present headache. Even though our data are insufficient to demonstrate a causal relation between the two forms of headache, they do suggest this real possibility.