Hi. I have just had a renewal of my chronic migraine after a 20 month hiatus. I have had 95% of all known treatments including all tablets, all injections, all infusions. Aimovig did not work. The only treatment that has worked is Botox but it has also failed. My big problem is pain management. No pain medication works. Morphine, Fentanyl (huge doses), tramadol, Targin, ketamine (the best of a bad lot but less accessible). Any suggestions?