Main formula: 10g of cinnamon; 10g of cinnamon stick; 10g of licorice; drink as tea. Addition and subtraction: If sweating is excessive, add Mai Dong 20g; Wu Wei Zi 20g; cold extremities, add Radix et Rhizoma Pinelliae 6g; weakness, add Red Ginseng 10g. Patients with hypotension, in addition to dizziness, mostly have palpitations, cold extremities, weak pulse, etc., which are mostly due to the inability of heart yang to reach the extremities. This formula is based on “Treatise on Typhoid Fever” with cinnamon to help warm Yang. According to pharmacological research, cinnamon and cinnamon sticks can enhance the contractility of heart muscle, increase heart beat output, improve blood circulation, increase capillary perfusion and improve systemic conditions, thus raising blood pressure.