I am 44 and have been struggling with migraines since I was 14. I have just found a pain management doctor who is open to the idea of an ER prescription. He does not know what it is so I am needing to explain it to him. I was wondering if anyone out there could explain to me how to tell him what it is and how it's used. Is it something I get from him and leave at the hospital or is it something I take to the hospital every time? and if I take it to the hospital every time do they write on it that I've been there so I can take it back to him showing when I've been? I just don't understand how it works so I can explain it to him. Is There anybody out there who can help me? I go back to my pain management doctor this Friday. Thanks so much in advance for your help!