There are four gen's of migraine sufferers in my family. I get them, but not nearly so bad as my sister. I find the info on the chemical on one side of the brain interesting. It's definitely a possibility, considering some of the characters in my family, that those of us suffering from the migraines may be the "normal" half!!(posted 9664 days ago)I've been on every drug imaginable. I have found one that works, but it's a prescription drug, and I try to avoid it (don't like taking them or paying for them!) It's called Novo-naprox. These work when you have an 8 on a scale of 1 - 10. For a 12 -- I've taken a nasal mist drug called Imitrex. It works. Don't drive. AS a matter of fact, don't do anything involving anything that could hurt you.
However, I have found that inhaling an herbal mist of herbs such as mint or lavendar can work.
You might also try looking at your diet. So many people eat "processed" foods now, that few even know what "processed" really means. My definition is anything that didn't grow that way. If it comes in a box, it's bad news. About a year ago I cut out 99% of processed or pre-packaged foods from our diet, avoiding anything with preservatives, and coincidentally, have only had one migraine in that time (I used to get them two or three times a month).