There are several home remedies that can help manage high blood pressure levels, including reducing your sodium intake, staying active, decreasing stress levels, and limiting your intake of alcohol. How can I Lower My Blood Pressure Immediately? 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!