The main treatment for low blood pressure is medication, and you should pay attention to maintaining a nutritionally balanced diet during the period of illness. 1. Drug treatment: patients with low blood pressure can use blood pressure-raising drugs under the guidance of specialized doctors. Volume expanders can be used, commonly used drugs are fludrocortisone, which can maintain blood volume and raise blood pressure. It is suitable for postural hypotension. It can be accompanied by adverse effects such as sodium retention, hypertension and hypokalemia. Vasoconstrictors can also be used, the main effect of which is to prevent vasodilation and elevate blood pressure. Commonly used drugs are octreotide and midodrine hydrochloride, which are indicated for severe postprandial hypotension, but are not recommended for diabetics. It may be accompanied by nausea, cramps, facial flushing, hyperglycemia and supine hypertension and other adverse reactions. 2. Diet: Choose an appropriate high sodium, high cholesterol diet and ensure water intake. Attention should be paid to reducing carbohydrate intake. Normally, you can adopt the dietary method of eating less and more meals. It is better not to eat too much food at each meal, so as not to lead to a decrease in the amount of return blood and aggravate the condition of hypotension. You can drink more water appropriately every day, and you can drink a glass of light saline water in the morning. There may be other clinical treatments and dietary requirements for hypotension. It is recommended to receive treatment and pay attention to dietary adjustments under the guidance of a medical professional.