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The Qi of the five Zang organs is derived from the Lung. If the Lung is affected by slight cold, coughing occurs. Cold combats with Qi, causing Qi to gather and reverse into the Lung, while the pathogen fluctuates in intensity. When the pathogen moves, Qi rushes upward; when Qi ascends, it injures the five Zang organs. If it disturbs the Stomach Qi, the Stomach Qi rebels, leading to vomiting. This is a case where lung cough lingers, and the movement of Qi affects the Stomach, causing vomiting.

Furthermore, during the late summer when the Spleen governs, if the Spleen Qi is deficient and fails to function properly, injury by cold Qi causes coughing, known as Spleen Cough (Pi Ke). The presentation involves pain under the right hypochondrium upon coughing, radiating to the shoulder and back with a humming sound; in severe cases, movement is impossible, and any movement triggers coughing. Since the Spleen and Stomach are exterior-interiorly related, persistent Spleen Cough transmits to the Stomach. The presentation involves coughing and vomiting; if vomiting is severe, roundworms (Ascaris) may be expelled.

In general, various coughs that lead to vomiting should be diagnosed according to their specific manifestations to identify the affected Zang or Fu organ.

When Lung Qi is deficient and injured by slight cold, coughing occurs. Coughing causes Qi to return to the Lung, resulting in Lung distension; Lung distension leads to rebellious Qi. Because the Lung is originally deficient and Qi is insufficient, and further invaded by pathogens, obstruction and stagnation prevent smooth circulation, thus causing coughing, rebellious Qi, and shortness of breath (Duan Qi).

Various types of Lin syndrome (Strangury) arise from Kidney deficiency combined with Bladder heat. The Bladder and Kidney are exterior-interiorly related and both govern water metabolism. Water enters the Small Intestine, descends to the Bladder, flows through the genitalia, and is excreted as urine. Kidney Qi connects to the genitalia, which serve as the pathway for fluids to flow downward. If diet is irregular, emotions such as joy and anger are unregulated, and deficiency/excess are unbalanced, internal-external harmony is lost, leading to Kidney deficiency and Bladder heat. The Bladder is the mansion of fluids; heat causes fluids to overflow internally and flow into the testes, obstructing the water pathways. Water cannot ascend or descend, accumulating in the Bladder. Kidney deficiency causes frequent urination, while Bladder heat causes difficult, scanty urination. Frequent yet difficult urination results in dribbling and incomplete emptying, hence termed "Lin." The presentation includes small amounts of urine passed frequently, tension and urgency in the lower abdomen, and pain radiating to the umbilicus.

There are also five subtypes: Stone Lin (Shi Lin), Exhaustion Lin (Lao Lin), Blood Lin (Xue Lin), Qi Lin (Qi Lin), and Turbid Lin (Gao Lin). The morphological and clinical presentations of these Lin syndromes are detailed separately in subsequent chapters; here they are collectively referred to as "Various Lin Syndromes" because they are discussed under one general approach. Treatments involving decoctions, external applications, moxibustion/ironing, acupuncture, and stone therapy have separate specific formulas. Methods for nourishing, supporting, and guiding Qi are appended below.

The *Yangsheng Fang* (Prescriptions for Nourishing Life) · *Daoyin Fa* (Guiding and Pulling Methods) states: Lie supine, spread hands on the knees, place heels obliquely under the buttocks, inhale through the mouth, vibrate the abdomen to its limit, and exhale through the nose for seven breaths. This removes Lin syndrome and frequent urination.

It also states: Assume a squatting position, approximately one chi high. Insert hands from outside bending the knees inward until reaching the dorsum of the foot. Firmly grasp the five toes with great effort, extending fully once, allowing internal Qi to curve inward. This benefits the waist and hips and treats Lin syndrome.