Primary hypertension is mostly caused by genetic or environmental factors, and may cause dizziness, headache and nausea, etc. Patients should pay attention to reasonable diet, regular monitoring, taking medication on time and correcting bad habits. 1. Reasonable diet: Primary hypertension should pay attention to a light diet, follow the principle of low salt and low fat, and avoid the intake of high sodium, high fat and fatty acid food. Diet should be based on low-salt food, and it is recommended that the salt content should not be higher than 6 grams per day. In addition, we should quit smoking and drinking, and eat more green food. 2. Regular monitoring: patients should regularly monitor their liver and kidney functions while taking the medication, and closely observe their vital signs to see if there are symptoms such as headache, chest tightness and nausea. 3. Taking medication on time: the principle of treatment for essential hypertension is to take medication for a long time, patients must choose the appropriate medication program under the guidance of the doctor and take the medication on time, do not take the medication on your own. 4. Correct bad habits: patients with essential hypertension should not smoke, as nicotine contained in tobacco will stimulate the central nervous system and sympathetic nerves, accelerate the heart rate, stimulate the chemoreceptors in the blood vessels, and lead to an increase in blood pressure. In addition, you need to maintain the habit of exercise, but not when you are sick and other physical discomfort, strenuous exercise. Patients who experience the above symptoms are advised to consult a doctor for examination and take medication as prescribed by the doctor, monitor their blood pressure regularly, and adjust their medication regimen if necessary.