“One hundred percent of migraine sufferers in a self-report survey said cannabis reduced migraine pain and discomfort.”
“Cannabis treats a wide variety of conditions, but specific formulations are better for some symptoms than others, patients report in a new landmark survey by a medical cannabis industry company Care By Design.
A full 100 percent of respondents with headaches, migraines, fibromyalgia, irritable bowel syndrome (IBS), and spinal cord injury reported a decrease in pain or discomfort on medical marijuana rich in the molecule cannabidiol (CBD).”
http://blog.sfgate.com/smellthetruth/2015/09/15/survey-medical-pot-treats-migraines/
http://www.thctotalhealthcare.com/category/headachemigraine/