You might be able to lower your secondary high blood pressure using alternative treatments but the only way to fix the problem is to treat the underlying cause. The most effective alternative treatment is living a healthier lifestyle. That means exercising and eating right as well as not drinking too much alcohol and giving up smoking altogether. If you're obese, losing some weight may help as well. You may also be able to lower your blood pressure by taking some supplements but make sure you talk to your doctor first because some of them could interfere with medications that you're already taking. Supplements that have been known to help include alpha-linolenic acid, blond psyllium, calcium, cocoa, cod-liver oil, coenzyme Q-10, garlic and omega-3 fatty acids.