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The Lung resides at the highest position in the body, and its Qi is the clearest and most purifying. If there were no external forces forcing it, how could there be the affliction of restless coughing? The factors forcing it are none other than external Wind-Cold (Wind-Cold), internal Phlegm-Fire (Phlegm-Fire), which ultimately boil down to Qi. For those initially contracting Wind-Cold, one should naturally adopt the orthodox treatment for Wind-Cold; however, if the cold stagnates for a long time and transforms into heat, the delicate Zang-organ (Lung) is easily injured. At this point, both dispersing methods for cold and cooling herbs should be strictly prohibited. This is because the Kidney Water (Kidney Yin) is often already deficient, and the Lung Metal (Lung Qi/Yin) has long lost nourishment. Borrowing this contagious common cold or new cough, it suddenly becomes an urgent and severe consumptive disease (Tuberculosis/Chronic Consumptive Disease). If recognition is not early, and treatment focuses only on superficial symptoms, later rescue will be futile. (Zhang Jingyue) Often encounters such cases, where the presentation includes high fever with aversion to cold, frequent and severe coughing, thick and sticky sputum, mental fatigue, daily emaciation of the skin and muscles, and six pulses that are wiry, surging, and rapid, lacking spirit upon prolonged pressing. At this moment, if one attempts to eliminate phlegm, it merely aids the trend of dryness and withering; this phlegm is generated from overflowing water and cannot be eliminated by ordinary phlegm-resolving drugs. If one attempts to clear fire, it merely damages Stomach Qi; this fire is formless deficiency fire, which cannot be subdued by cold and bitter herbs. If one attempts to regulate Qi, it merely dissipates true Yuan Qi; this Qi is the precious Yuan Qi of the Dantian, floating upward due to the lack of Yin to support it, and cannot be regulated by Cortex Morus Radicis (Sang Bai Pi) or Pericarpium Citri Reticulatae (Ju Hong). Body fluids are consumed day by day, and consumption increases day by day; Yin is deficient while Fire flourishes. Ying (Nutritive) blood circulates within the vessels, hence the pulse is surging, rapid, and chaotic without limit, also forced by the momentum of Fire. The True Fire within Water flares upward, causing the bone-deep great heat to become vigorous. Fire attacks Metal (Lung), making the burning and scorching unbearable. Unless one heavily employs formulas that "supplement Water within Fire" (nourish Yin to anchor Yang), how can one endure the crisis of a fish in a dried rut or a prairie fire? I often use Ba Wei Wan (Eight-Ingredient Pill with Rehmannia) or remove Fu Zi (Aconite Root), double the dosage of Shu Di Huang (Prepared Rehmannia Root), and add Niu Xi (Achyranthes Root), Mai Dong (Ophiopogon Tuber), and Wu Wei Zi (Schisandra Fruit) to decoct. Administer large doses, two doses per day, taken warm before meals, so that the True Fire returns to its source, extinguishing itself like thunder and lightning. Once Summer Yin is obtained, the scorched and dried state slightly recovers, gradually transitioning from bone-steaming fever without sweat to sweating with heat resolution. However, once deficiency Fire retreats, if the True Yuan Qi is extremely deficient, fatigue will inevitably appear; the merit of tonifying Qi should then be continued. If True Yin is extremely depleted, once True Yang recovers, dryness and aridity remain difficult to remove; the merit of supplementing Water must be doubled. Under these circumstances, using hot herbs to treat heat diseases seems shocking. Yet, treating the root cause of the original disease truly aligns with profound principles, often achieving miraculous effects. I dare to present the following formula.