Sumatriptan
"I've suffer from cluster migraine on and off for 10 years. They last about 1-3 hours everyday for 30-40 day  and this happens usually once sometimes twice a year.  When they first started doctors really didn't tell me much they about then 5 years ago I seen a new doctor he prescribe me  Sumatriptan nasal spray it get rid of them in 10-20 min. I can not say enough good things about this drug it's really helped he get on with everyday life"