This herb is the first to be found in the treatise on typhoid fever, that is, the Shen Nong Ben Cao Jing so-called peony laurel, taste pungent and sweet, warm, to the heart, lung, bladder meridian. 2, the “treatise on typhoid fever” with cinnamon branches are indicated to remove the skin, not to remove the skin on the branch, the ancient use of cinnamon branches, but to take the year newborn shoots, folded inside and outside as one, the skin and bones do not distinguish, if the skin and bones can be identified to remove the use, so said to remove the skin. 3, cinnamon branch of its use of the road are six: and camping, Yang, water, down the gas, blood stasis, tonic. 4, Gui Zhi force is good at promoting, can ascend the atmosphere (i.e. the chest of the zong qi), lower the rebellious qi (liver qi, rushing qi upward and so on), dispel the evil qi (such as external wind and cold and so on). The “Treatise on Typhoid” Ling Gui Zhu Gan Tang is used to treat short qi, which is taken to be able to ascend; Gui Zhi plus Gui Tang is used to treat Penetrating Qi, which is taken to be able to descend; Ma Huang, Gui Zhi and Xiao Qing Long Tang are used to treat external sensation, which is taken to be able to disperse. 5, Xiao Qing Long Tang original ephedra, cinnamon and use, to asthma to ephedra plus almonds and not to cinnamon, sincere to “Shen Nong Ben Cao Jing” originally said cinnamon main vomiting and sucking. Vomiting and sucking is also asthma, go to the cinnamon branch can not be fixed asthma carry on. Doctors know that ephedra lung fixed asthma, but rarely know the Gui Zhi lowering gas fixed asthma, is not read the “Shennong Ben Cao Jing” of the fault. 6, Gui Zhi is a branch of wood, its nature into the foot Turk’s Yin Liver meridian, good at suppressing liver wood so that it does not rebel, but also good at liver wood of the depression so that it regulates, so there is a wet and wood fire evidence, not Gui Zhi not for the work, the clinical evidence is often matched with Chai Hu, Manchurian, Dan Pi, Gardenia. 7, Gui Zhi this camping medicine, get ephedra, ginger, it makes the camping Qi outside and sweat, from the pungent; get peony, it is astringent camping Qi and stop sweating, from the acid; get licorice, it is internal tonic camping Qi and nourish blood, from the sweet. 8. Gui Zhi has Paeonia lactiflora and Ying, Ephedra is sweating, with Radix et Rhizoma is aphrodisiac, with Ginseng is for deficiency. Peach kernel, rhubarb with it is broken blood, gum, ground yellow with it to open the pulse, gum syrup, licorice by the regulation of the middle, white atractylodes, poria by the expulsion of moisture. The “famous doctor” cloud: Gui Zhi xuangui hundred drugs, good to have also. 9, cinnamon branch dosage 5 to 30 grams, a small amount can warm the Yang, open the pulse, and Ying. A large amount has the effect of lowering qi, moving blood stasis and tonifying the middle.