Try this before taking that pain killer pill. Drink couple of glass of warm water. This will dilute the acid in the stomach which can be giving the headache. Soak your feet in hot water. Soaking your feet in hot water will help your head feel better. By drawing blood to your feet, the hot-water foot bath will ease pressure on the blood vessels in your head. For a really bad headache, add a bit of hot mustard powder and salt to the water.