OnabotulinumtoxinA
"Migraines for 30+ yrs; went from occasional, controlled reasonably well with Triptans. Approx. 4 yrs ago turned into Chronic Migraines w/aura avg. 6 days a week, and less and less relief from Triptans or Naproxen (allergic to Aspirin).

Tried Beta blockers and just about every other known possible prevention; no positive result, only negative side effects.

Had Botox injections 5/2015 and Magic! Not one Migraine for next3 weeks! Diagnosed that same week with Essential Thrombocythemia( cancer involves HIGH platelet count etc.),

Taking low dose Chemo treatments plus blood thinners and Migraines have returned with increasing frequency.

Will do 2nd Botox treatment in Aug. hope works for longer!"