Simple home remedy for a headache or migraine: submerge hands and feet in warm water and put an ice bag or bag of frozen something at the base of your skull. The heat on your extremities pulls the blood from your head relieving some of your headache.
Cut orange/lemon/grapefruit in half, eat the middle, leave center core-like stem intact. Pour veg oil, olive oil etc into orange just below top of the stem. Light stem, it will burn for hours and smell amazing.