Non-lateralized pain in a case of chronic paroxysmal hemicrania?

We describe a man with chronic paroxysmal hemicrania, who remained free of headaches on indomethacin, 25 mg once or twice daily. However, in this case, in contrast to typical cases of paroxysmal hemicrania, the pain of the headaches was nonlateralized and was located in the centre of the forehead. The headaches were not associated with local autonomic symptoms or signs involving the eyes or nose. Initially, the pain of the headaches lasted for seconds only and was brought on by coughing.