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Sometimes a dull , aching pain lingers for several hours . " I think it 's wonderful , " said Dr. Maurie Markman , vice president for clinical research at the University of Texas M.D. Anderson Cancer Center . You may be a candidate for preventive therapy if you have two or more debilitating attacks a month , if you use pain-relieving medications more than twice a week , if pain-relieving medications are n't helping or if you have uncommon migraines . SUMMARY : After adequate cooking , the sandwich is either served to the customer immediately or - - after being marked to indicate the time - - is placed on a heat chute for a maximum of ten minutes holding prior to customer service . " He had a nickname for everyone , and he could be seen glad-handing his way through lunch at the CIA 's seventh-floor executive dining room .