ocr: Resudent one Staff Pnysicon ParieNt Eaucation Chart Cluster Headaches Most common in men 30 - to 50 years old Clusters one or more times a day Cluster continues for weeks or months - Pain centers around one eye, then spreads to cheek and forehead Attected eye becomes red and waters - Nostril stuffs and runs Pain lasts 20 - to 90 minutes Reprinted with permission from Resident and: Stalf Physician (c)1 1991-92, 19931 by Romaine Pierson Publishers,nc.