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When injured by dampness, the head feels heavy, there is fatigue with a desire to lie down, reluctance to speak, vexatious heat with profuse sweating, thirst, and dark urine. The pulse is surging (Hong). This indicates that damp-heat is damaging Qi. It is appropriate to use Qingshu Yiqi Tang (Cooling Summerheat and Boosting Qi Decoction) added with prepared Gypsum Fibrosum (Shu Shigao), Anemarrhenae Rhizoma (Zhimu), and fresh Lotus Leaf (Xian Heye), etc., to boost Qi and clear heat.

The *Neijing* (Inner Canon) states: "Injury by dampness causes the head to feel as if covered or wrapped." It also states: "Sluggish speech indicates deficiency of Qi." Now, with a heavy head and reluctance to speak, combined with vexatious heat and profuse sweating, the signs of Qi deficiency are quite obvious. Moreover, when fluids fail to ascend, thirst results; when dampness accumulates internally, dark urine occurs. Therefore, Qingshu Yiqi Tang is used to strongly tonify the Middle Jiao (Spleen and Stomach), while adding prepared Gypsum Fibrosum, Anemarrhenae Rhizoma, and fresh Lotus Leaf to vigorously clear Qi-level heat. However, one must examine carefully and meticulously, lest negligence leads to misdiagnosis and error.

When injured by dampness, the body feels fatigued with a desire to sleep, the eyes turn yellow, and the urine turns yellow. This indicates Spleen deficiency with dampness accumulation, which is about to develop into Gu Dan (Grain Jaundice). It is appropriate to use Yin Chen (Artemisiae Scopariae Herba), Cang Zhu (Atractylodis Rhizoma), Hou Po (Magnoliae Officinalis Cortex), Yi Yi Ren (Coicis Semen), Chi Fu Ling (Poria with Red Core), Che Qian Zi (Plantaginis Semen), Shen Qu (Massa Medicata Fermentata), and Gu Ya (Oryzae Fructus Germinatus), etc., to transform the Spleen and regulate dampness.

Internal deficiency of Spleen Qi leads to bodily fatigue and a desire to sleep; dampness accumulating in the Middle Jiao leads to yellowing of both the eyes and urine. This steaming and fermenting interaction between damp-heat and grain Qi will inevitably result in jaundice. Therefore, Cang Zhu, Hou Po, Chi Fu Ling, and Yi Yi Ren are used to strengthen the Spleen; Shen Qu and Gu Ya are used to soothe the Spleen; Che Qian Zi and Yin Chen are used to separate and drain via the Bladder, so that when Spleen Qi becomes robust and functional, damp-heat transforms naturally.

When injured by dampness, the eyes turn yellow, the body feels fatigued, stool is loose, urine is dark, the abdomen is distended, and the dorsum of the feet is swollen. This indicates Spleen deficiency with flooding of dampness, which is about to develop into Zhong Man (Edema and Distension). It is appropriate to use Xiao Wenzhong Wan (Minor Warming the Center Pill) added with Yin Chen and Che Qian Zi, etc., to tonify Earth and expel dampness.

In the previous entry, yellow eyes and yellow urine indicated dampness accumulation with heat steaming, inevitably leading to jaundice. In this entry, yellow eyes, loose stool, abdominal distension, and foot swelling indicate excessive dampness transforming into water, soaking into the muscles, inevitably leading to edema. Xiao Wenzhong Wan uses bitter-warm properties to regulate the Spleen, while adding Che Qian Zi and Yin Chen to separate and drain via the Bladder, akin to the principle of opening tributaries to unblock waterways.

Having examined discussions such as those in the *Neijing*'s *Jiugong Bafeng* (Nine Palaces and Eight Winds), wind comes from eight directions, corresponding to the Eight Trigrams. Thus, after the Winter Solstice, wind coming from the Qian direction (Northwest) is called Prosperous Wind, primarily responsible for nourishing all things. Wind coming from other directions is called Deviant Wind; wind blowing directly against the face is called Thief Wind, primarily responsible for harming all things. That is, wind coming from the North after Start of Winter, from the East after Start of Spring, from the South after Start of Summer, and from the West after Start of Autumn, are all Proper Winds. If wind does not come from its proper direction but blows directly against the face, it is called Thief Wind. It not only harms living things but also easily invades humans. If the body's Righteous Qi (Zheng Qi) is deficient, wind will surely exploit the void and invade. Suddenly, there is headache, aversion to cold, nasal congestion, heavy voice, cough with air reflux, and profuse phlegm, yet the pathogen remains solely in the Lung, differing from the high fever and transmission patterns of Shanghan (Cold Damage). Generally, Cold is injured in Winter, Summerheat in Summer, malaria and dysentery appear in Autumn, and warm-heat diseases appear in Spring. These four seasonal qi manifest according to their respective seasons. Only Baogan Fenghan (Sudden Invasion of Wind-Cold) can infect everyone, regardless of age or health status (even during intense summer heat or among those bedridden with chronic illness), so ancients called it Han Yi (Cold Epidemic). This is because wind invariably combines with cold, first injuring the Lung. When Lung Qi is obstructed, nasal breathing becomes difficult, and voice is muffled. The pathogen lingers in the Lung, undergoing steaming and refining, until phlegm becomes thick and nasal discharge dense, and nasal airflow clears, allowing gradual resolution. Therefore, treatment methods should only employ bitter, acrid, and warm agents to release the exterior and diffuse Lung Qi. One must not overuse cold-cooling herbs, which would cause stagnation in the Upper Jiao, trapping the pathogen at the root of the Lung and transforming the condition into a wasting disorder. Physicians must be cautious.