To lower your blood pressure immediately, try these simple techniques: * Take a warm bath or shower. Stay in your shower or bath for at least 15 minutes and enjoy the warm water. * Do a breathing exercise. Take a deep breath from your core, hold your breath for about two seconds, then slowly exhale. * Relax! In addition to these simple techniques, consider trying some herbal supplements that may help with high blood pressure, such as hawthorn, fish oil, garlic, magnesium, Coenzyme Q10, and folic acid. However, always talk to your health care provider before starting any new treatments.