So many migraines are triggered by commonly used chemicals that are difficult to remove from our environment. Even if they're sporadically present, it can take

So many migraines are triggered by commonly used chemicals that are difficult to remove from our environment. Even if they're sporadically present, it can take hours for them to trigger a migraine, so the association is extremely difficult to draw. Fragrance chemicals are very common triggers, but again, they're very difficult to remove from our lives given their ubiquity and increasing popularity to the point where people can't fathom living without them. One of the worst offenders and most difficult to remove are fragranced dryer sheets. People who use them are virutally never relieved of being exposed from them given that they're in clothes, towels, and bedding, and the chemicals offgas months or years. It's exceedingly difficult to find personal care products that are free of these unnecessary chemicals. And "natural" products like essential oils are common triggers and probably no better.