The first reference to lung distension is found in the “Ling Shu? The treatise on distension says “Lung distension is a deficiency fullness and asthma”, and Zhongjing’s “The Essentials of the Golden Horoscope” points out that the main symptom of this disease is “coughing and upper air, this is lung distension, the person is asthmatic and his eyes are like off”. Lung deficiency is slightly cold injury is coughing, coughing is gas returned to the lung is lung distension, lung distension is gas reversal, and the lung is deficient, gas is not enough, and multiplied by the evil, congestion can not be pronounced, so cough reversal short lack of gas also “, pointed out that the key to the pathogenesis of lung distension is lung deficiency evil multiplied, the treatment should take into account the symptoms, try to analyze the following: lung distension clinical evidence to identify the urgency of the disease, both the onset of the attack on the evil Qi is the main, not yet to This is the general outline of its treatment, but the clinical evidence needs to live to see, feeling external evil (wind and cold) is an important cause of lung distension and aggravation of the symptoms. Because the six gases are from the fire, so the clinical standard of lung distension see more heat than cold evidence, and the cold evidence is only temporary, long from the heat more. According to the treatment principle of “heat is cold”, the clinical use of clear method (including the use of warm and clear) is more than warm method to treat the symptoms of lung distension. Because phlegm is the standard of fire, fire is the root of phlegm, so the phlegm-heat evidence or drink from heat to phlegm, more from the treatment of clearing. Drink, internal and external treatment, in addition to the formula with hemp, gui dispersing cold lung, ginger, Xin warm lung drink, but the lung reversal is very, purely with the dispersal, both fear of injury to the lung, and must prevent warm dry injury, so the combination of sour and cold Wu Wei Zi convergence of lung Qi, white peony nourishing blood, there is a layer of deeper meaning, where the drink is made, for the fluid of the partial gathering, uneven distribution of fluid in the body, there must be dry, Wu Wei, white peony acid sweet liquid, to help its dryness. The sutra says: “pungent lung”, that is, pungent to disperse the surface evil, evil to go to the right since the peace, to help the lung; and cloud “lung want to collect, urgent food acid to collect”, coughing and wheezing is on the gas, breathing frequently enough to dissipate the lung, so the lung body with acid to collect its dissipated gas, Wu Wei acid to converge Lung body, pungent to help the lung with a a convergence, the lungs of the opening and closing, without the disadvantages of convergence, but also can be dried ginger and Wu Wei Zi with pounding, is also the intention. If the old lung disease, resulting in daily depletion of lung qi, involving the kidneys, lung and kidney qi deficiency, loss of the main qi and qi division, resulting in a lack of heart qi and heart yang, or heart yin and heart blood deficiency, easy to attract evil, cold, heat, phlegm and stasis congestion lung, paralysis, obstructing the flow of heart blood. This kind of deficiency is the main cause, and there are also real evil, so the treatment should be to nourish the lungs and kidneys, and at the same time to remove the evil as the main method. The lung is the master of qi, the kidney receives qi, and the heart is based on the kidney. On the basis of astringing the lung and nourishing the qi, we can slightly add products that promote the lung, so that the tonic is not stagnant, such as Su Ye, almonds and other pungent and warm light agents to promote Yang and open the lung. The formula is a combination of propagation of the lung and dispersal of evil, and astringency of the lung and expectoration of phlegm, a propagation and astringency of the lung, so that the evil will go and the lung will be safe. The previous people have said that “the treatment of reality must be concerned about the deficiency, the treatment of deficiency must be concerned about the reality”, which can be said to be pertinent.