The Yongquan point is a well point of the foot Shao Yin Kidney meridian, located in the depression in the upper 1/3 of the line between the root of the second and third toe and the heel of the foot. The Yongquan point is the lowest point in the body, so it has a role in drawing fire back to the source. Usually at the Yongquan point on the bottom of the foot, you can apply Wu Juju powder, etc., to draw fire downward to treat symptoms such as mouth ulcers, nosebleeds, and high blood pressure. In addition, because the Yongquan point is a well point, it can also be used to treat conditions such as coma and stroke, and it can also be used for some daily health care. You can generally rub the Yongquan point with your palm before going to bed and after soaking your feet for 2-3 minutes to get the soles of your feet hot, which can induce fire to return to the yuan and nourish the liver and kidneys, which is a very good treatment for hypertension and insomnia.