The pharmacological effects of corn mullein do have a hypotensive effect, but its hypotensive effect is very weak, far from the desired clinical effect. In addition to its hypotensive effect, corn beard also has a diuretic effect on swelling, as well as enhancing immunity and lowering blood sugar, but these effects are very weak, in clinical treatment simply can not achieve the desired effect, so only rely on corn beard to lower blood pressure simply can not be lowered. If the patient’s blood pressure is very high, more than the range of hypertension 2, it is generally recommended to take long-term antihypertensive drug treatment. Of course, you can appropriately drink water after boiling with corn beard, at the very least to play a certain role in health care, but do not use corn beard as the main way to lower blood pressure.