1.   A cup of coffee, which constricts blood vessels, may help reverse this and ease the headache pain, he says.

2.   Bristol-Myers Squibb Co. won Food and Drug Administration approval to sell its Excedrin as the first non-prescription treatment for migraine headache pain.

3.   But finding the actual reason for headache pain has frustrated neurologists for years.

4.   Overindulging in alcoholic beverages causes blood vessels to swell or dilate, which triggers headache pain, according to the National Headache Foundation in San Francisco.

5.   The only side effect was severe headache pain apparently caused by a spinal tap procedure performed as part of post-seizure testing.

6.   Typically, migraines involve not just headache pain but nausea, light and sound sensitivity and, in many cases, pounding on only one side of the head.

7.   Children who drew images of their headache pain helped doctors better diagnose and treat migraines, showing that pictures sometimes speak louder than words, a study says.