Credit: Dynamic Chiropractic, Volume 31, Number 10, By Editorial Staff http://www.dynamicchiropractic.com/mpacms/dc/article.php?id=46317 Analgesic Overuse Associated With Chronic Headaches, Neck and Back Pain By Editorial Staff The International Headache Society defines “medication overuse headache” (MOH) as “headache appearing at least 15 days/month; regular intake of analgesics or ergot alkaloids; and headache disappearing...