I agree wiix....works for me too if I can get it in time....
This may sound silly but I carry a vicks inhailer and a small tube of ben gay with me everywhere I go......If I start to get the headache and its pretty slight i use the vicks......but if it hits hard and I am away from home I put a thin layer of ben gay on my forhead......the sensation sooths my migrane as well as the smell of both with the menthol vapors causeing the blood vessles in the head to open and allows blood to move more swiftly and fully......
Anything to reverse the constricted blood vessles......
then I pop the excedrin....and if need be go to bed........I have not had a really really bad (throw up your socks) kind of migrain in a couple years by sticking to this method.
I do not take any rx....I have MS also and refuse anyother meds then what I "HAVE" to take.....

Try it see if it works for you.......much cheaper and not damaging to your body in anyway.....