Any Simple Headache Remedies?

Spells, herbs, meditations, or anything else that can help me avoid headaches or cure one that I'm experiencing would be great. My most common headaches are tension headaches resulting from physical and/or emotional stress. Sometimes I get headaches from not eating or drinking enough and this leads to tension, but I try very carefully to avoid this. Usually it's just anxiety (or even wearing a bra for too long...).

Any suggestions on magickal aid to my already-physical methods of treating/preventing these headaches?

I'm also going to post this (verbatum) in a few other experiences of mine as well as in the form of a question in the "answers" section. :)