Headaches caused by low blood pressure in the elderly can be improved by lying down, replenishing volume, and seeking prompt medical attention. 1. Lying down: Headaches caused by low blood pressure may be caused by insufficient cerebral perfusion due to low blood pressure, resulting in headache attacks. Lying down will increase cerebral blood flow and improve headache symptoms. 2. Replenish the volume: If the headache is still not relieved after lying down, you can replenish the volume appropriately and drink more water, which can relieve the insufficient cerebral blood supply after the volume is increased. 3. Timely medical treatment: If the above measures still can’t relieve the headache caused by low blood pressure, it is recommended to seek medical treatment in time, under the guidance of the doctor, intravenous fluids or the application of blood pressure-raising drugs such as dopamine to improve the symptoms, and in the course of treatment, we have to actively look for the cause of low blood pressure. Headaches caused by low blood pressure in the elderly are recommended to be treated under the guidance of a doctor.