There are many causes of low blood pressure and dizziness, and it is necessary to find the cause and treat it symptomatically. 1. If the dizziness is caused by low blood pressure due to heart failure, pulmonary hypertension, or heart disease, it is necessary to find the cause first, and only after removing the cause can the blood pressure rise. 2, sometimes cerebrovascular disease can also lead to low blood pressure, causing dizziness. It is necessary to go to the hospital for a transcranial Doppler ultrasound, brain CT or brain MRI, so that the degree of cerebrovascular disease can be determined, and then according to the specific situation, symptomatic treatment. 3, if the dizziness is caused by postural low blood pressure when getting up or squatting, you should pay attention to not getting up or squatting too fast or too hard at this time. 4, if the blood pressure is low for a long time, you can usually eat more salty food, and usually need to drink more water, especially in the summer. 5, if it is due to anemia caused by low blood pressure, dizziness, need to pay more attention to diet, eat something nutritious, usually also need to strengthen exercise. Try to avoid going to places with a lot of traffic. There are many other causes of low blood pressure and dizziness, so when you have low blood pressure and dizziness, you need to go to the hospital in time to clarify the cause.