When the headache is due to inflamed sinuses, inhale steam with vinegar added to the water.
It clears the nasal block as well.
Home Remedies for Headache: Add water to 1 tbsp ginger powder. Heat gently in a pan. Apply the warm poultice on forehead for 15 minutes. If you don’t have ginger powder ready, you can also chew raw ginger root. Chewing raw ginger root can ease the nausea and digestive problems that tend to accompany migraines. Ginger also appears to block the effects of prostaglandins, substances that may cause inflammation of the blood vessels in the brain, leading to migraines.