3.5 Probable trigeminal autonomic cephalalgia

The patient is a 47-year-old bus driver with a one-sided head pain that has continued for roughly three months, recurring in short attacks up to nine times a day. The pain sits at a moderate intensity. A trial of indomethacin brought complete relief of the pain. She reports no red eye, no swelling of the eyelid, no facial or forehead sweating, no eye watering, no narrowing of the pupil, no stuffy nose, no eyelid droop, and no nasal drainage during attacks. She denies any sense of restlessness or agitation and says the pain is not made worse by moving around.