If you have strong and unbearable headache or high blood pressure, try this natural remedy that will eliminate the pain in just 20 minutes. You need some gauze or fine cotton fabric that you will later use as a compress. Fold the gauze in 8 layers, and the compress should match your forehead.   Dissolve 2 teaspoons of salt in 8.5 oz/ 250 ml of hot water (60-70°C). Now you have 8% salt solution. Headache is often caused by the food you eat, like diet soda, alcohol and processed foods. Wash…