Low blood pressure headaches can be treated by lying down, replenishing blood volume, intravenous fluids, and medications. 1. Lying down: low blood pressure headache will cause insufficient cerebral perfusion, resulting in headache. Lying on your back at this time can relatively increase cerebral blood flow, which can improve the symptoms; 2. Replenish blood volume: if you can drink more water, the increase in volume can relieve the insufficient cerebral blood supply. 3. Intravenous fluids: If the symptoms are not relieved after resting and lying down, you should go to the hospital in time for intravenous fluids to replenish blood volume. 4. Application of related drugs: If the blood pressure does not rise above 90/60mmHg after intravenous infusion, dopamine and other drugs can be used to raise blood pressure. Drugs should be used under the guidance of physicians, and combined diseases should be actively treated for primary diseases.