Suggest Treatment For Frequent Attacks Of Migraine

I am 26 years old, and I have been suffering from migraine attacks for the past 6years. I have taken every medicine that u can imagine and notting helps me. I suffer for three whole days when I get migraines. It starts from my left side....my eye starts hurting and moves up to my head and I'm in pain and don't know what else to do. Please help me.