This is a strange one, but it works for me: When a headache gets bad enough to interfere with my attempting to continue with my day, I get a pack of ice and put it on my EYEBALLS. It feels very strange - but you'll get a kind of seeping cold into your head, and by the time you can feel it in your chest (maybe 2-3 mn), the headache is MUCH better. This came out of my really liking those around-the-eyes cold backs but finding that if a kid being helpful moved it onto my eyes, it actually worked better.