treatment for your chronic migraine 15 or more headache days a month each lasting four hours or more can be overwhelming so ask your doctor about botox. >> looked out to prevent headaches and adults with the clinic migraine before they even start. if the number one prescribed branded chronic migraine treatment. so far more than in 5 million botox treatments have been given two over 850,000 chronic migraine patients, affects botox may spread hours to weeks after injection, causing serious symptoms. alert your doctor right away as difficulty swallowing, speaking, breathing, eye problems, or muscle weakness can be signs of