In patients with low blood pressure, if there is no obvious hypotensive shock, the blood pressure can be raised by taking a small amount of mild herbal medicine, such as raw pulse drink or adding salt to the diet, which can raise the blood pressure mildly. If there is a large drop in blood pressure within a short period of time, or if there is obvious hypotensive shock, fluid resuscitation should be given in large quantities to raise blood pressure, and vasoactive drugs such as dopamine or vasopressin can be applied to raise blood pressure. In addition, norepinephrine and epinephrine, for example, can be used to raise blood pressure when it drops sharply.