AbstractChronic paroxysmal hemicrania has gradually become a well-established headache entity. However, the fact that the condition can also occur episodically is less well known. Both episodic and chronic paroxysmal hemicrania respond well to treatment with indomethacin. This makes it particularly important to recognize these conditions and to differentiate them from cluster headache, which is treated with other medications than indomethacin. In this article we describe additional cases of episodic and chronic paroxysmal hemicrania to illustrate the clinical features of these conditions.