High blood pressure and swelling of the head are usually caused by abnormal dilation of cerebral arteries due to high blood pressure, which presses on the brain tissue. It can be relieved by taking antihypertensive drugs. Patients who have been diagnosed with high blood pressure should take antihypertensive drugs regularly, commonly used drugs are Chlosartan, Hydrochlorothiazide, Spironolactone, Propranolol, Metoprolol, Nifedipine, Lacidipine and so on. After blood pressure is effectively controlled, headache and head swelling can be relieved on their own. If the headache is not relieved after taking antihypertensive drugs and blood pressure is controlled, it is necessary to consult a doctor in time and improve the CT examination of the head urgently to find out whether there is the possibility of cerebral hemorrhage. The specific treatment plan should follow the doctor’s instructions, and if the symptoms are serious, you should go to the emergency room or call 120.