Gui Zhi goes to the heart, lung and bladder meridians, while Bai Shao goes to the spleen and lung meridians. Gui Zhi is sweet, pungent and warm in nature, and belongs to the heart, lung and bladder meridians. It has the efficacy of sweating and relieving muscles (relieving the evil qi on the surface of the skin), warming the meridians, assisting yang in transforming qi, and leveling the flushing and descending qi, and it is used in the treatment of wind-cold cold and flu, blood-cold meridian closure, paralysis of the joints, phlegm (a pathological product of the impaired metabolism of water and liquid), oedema, palpitation (a quickening of the heartbeat, often accompanied with heart palpitations) and running dolphin, and other conditions. This product is pungent and warm, easy to injure the yin and move the blood, all external heat disease, yin deficiency fire (deficiency of yin and essence in the body, the emergence of hyperactive fire), blood heat paranoia (heat caused by blood abnormalities out of the evidence), should be contraindicated cinnamon sticks. Pregnant women and people with excessive menstruation should be cautious of using this product. White peony is sour, bitter, slightly cold in nature, and belongs to the spleen and lung meridians. It has the efficacy of nourishing blood and regulating menstruation (regulating menstrual irregularities caused by blood deficiency), astringing yin and stopping sweating (astringing yin fluid and reducing sweating), softening the liver and relieving pain (treating pains caused by deficiency of liver yin and liver blood), and calming liver yang, and is used in the treatment of blood deficiency, atrophy and yellowish coloration, irregular menstruation, and headache and dizziness. White peony should not be used together with veratrum. Gui Zhi and Bai Shao are two traditional Chinese medicines, usually need to be used in combination with other medicines, the efficacy of single use is limited, and is not suitable for all body types, if necessary, please use under the guidance of traditional Chinese medicine practitioners, do not use blindly on your own.