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Yun Qizi stated: When Taiyang disease (disease of the Taiyang channel) caused by Shanghan (Cold Damage) fails to resolve after sweating or purging therapies, and symptoms persist beyond the transmission of channels, it is also classified as a Wenyi epidemic. For instance, if Taiyang syndrome persists after sweating/purging and channel transmission, and the pulse at the cun, guan, and chi positions on both wrists is floating in all three positions, it is Taiyang Wenbing (Spring Warmth Disease). If there is fever, eye pain, and insomnia persisting after these therapies, with a long pulse in all three positions, it is Yangming Wenbing. If there is chest and hypochondriac fullness persisting after these therapies, with a wiry pulse in all three positions, it is Shaoyang Wenbing. If there is abdominal fullness and dry throat persisting after these therapies, with a deep and fine pulse in all three positions, it is Taiyin Wenbing. If there is dry mouth and tongue with thirst persisting after these therapies, with a deep and fine pulse in all three positions, it is Shaoyin Wenbing. If there is irritability, abdominal fullness, and retraction of the scrotum persisting after these therapies, with a faint and moderate pulse in all three positions, it is Jueyin Wenbing. Therefore, treatment should be selected according to the affected channel and administered according to the specific syndrome. If macules appear, it is considered Wendu (Warm Toxin).

Correction: The commentary notes that the *Shanghan Lun* describes the progression as Day 1 Taiyang, Day 2 Yangming, Day 3 Shaoyang, Day 4 Taiyin, Day 5 Shaoyin, Day 6 Jueyin, which constitutes the completion of channel transmission. Transmission back to Taiyang after seven days is termed "passing the channel" (Guojing). Yun Qizi’s assertion that Shanghan failing to resolve after passing the channel is immediately identified as Wenbing demonstrates a failure to recognize that Shanghan and Wenbing follow distinct pathological pathways.

Annotation states: I believe there is a distinction in severity between "Wen" (Warmth) and "Re" (Heat). Thus, Zhang Zhongjing stated: "If one encounters Warm Qi, it becomes Wenbing" (This statement is attributed to Wang Shuhe, not Zhang Zhongjing himself). If one further encounters Warm-Heat Qi, it becomes Wendu, as Heat is more severe than Warmth. However, Cold damage sustained in winter manifesting in spring without exposure to other pathogenic factors is called Wenbing, representing a milder form. If Wenbing persists and is compounded by Warm Qi, becoming a more severe Wenbing, this represents a slightly heavier condition. The *Shanghan Li* defines contracting Warm Qi twice as Wenyi. There are also cases where Wenbing arises in spring not due to winter cold but from specifically contracting Spring Warmth Qi, which can be named Chunwen (Spring Warmth), analogous to Winter Shanghan, Autumn Shanshi (Dampness Injury), or Summer Zhongshu (Summerheat Stroke). (Commentary: The *Yinyang Dalun* outlines the sequence of seasonal correct qi: Spring Warmth, Summer Summerheat, Autumn Coolness, Winter Cold. If one specifically contracts Spring Warmth Qi, it may be named Chunwen; similarly, contracting Autumn Coolness Qi could be named Qiuliang illness. If Chunwen qualifies as Wenbing, why cannot Qiuliang qualify as Coolness illness? Since naming it Coolness illness seems difficult, it was tentatively covered by Dampness syndromes. Reflecting on the obstruction regarding Autumn Coolness reveals that attributing Spring Warmth to Wenbing is fundamentally flawed.) Thus, Spring Wenbing presents in three variations: those transforming from winter cold into spring Wenbing; those where unresolved Wenbing is compounded by Warm Qi; those where repeated contraction of Warm Qi mixes to form Wenbing; and those contracting Spring Warmth Qi directly in spring without prior winter cold or subsequent Warm Qi. All three may be termed Wenbing, distinguished only by their differing etiologies.

Correction: Every disease has its specific etiology; for example, Shanghan results from exposure to Wind-Cold, while food injury results from overeating. In contrast, Wenbing arises from latent pathogens (Fuxie). Patients often fall ill suddenly while living quietly without obvious cause, unable to identify the onset or the moment of infection. Consequently, theorists propose various causes: non-seasonal warmth in winter, Spring Warmth Qi, unresolved Shanghan after channel transmission, or latent winter cold manifesting in spring/summer. (Note: "Winter cold damage leads to spring Wenbing" originates from the *Suwen*, written by Han dynasty scholars; Wang Shuhe included it in the *Shanghan Li*, likely due to textual continuity errors.) Others cite "failure to store essence in winter leads to spring Wenbing" (also Han dynasty writing, focusing on depletion rather than pathogenic invasion; while pathogenic invasion via deficiency is plausible, it fails to specify the pathogen. Even virgins or wealthy individuals living secluded lives are not immune to epidemics, indicating rigid adherence is inappropriate.). Observing that winter Wenbing and summer/autumn Wenyi share identical pulses and syndromes, yet treating them identically to Shanghan, raises contradictions: if winter onset is Shanghan, why does Wenbing manifest in winter rather than spring/summer? This uncertainty renders previous theories unreliable. Seeking the root cause, neither Shanghan nor latent cold fits perfectly. Attributing it to non-seasonal winter warmth is speculative and lacks evidence. Severe cold and heat are sharp and easily contracted, causing serious illness. Warmth, however, is the harmonious qi of heaven and earth, promoting growth and blood/qi harmony. It is illogical to blame benevolent weather for harm. Comparatively, Wenbing occurs even in cold winters, and temporary warmth in deep winter lacks definitive proof for causation. Claiming Spring's proper warmth causes Wenbing is redundant; claiming Wenbing compounded by Warm Qi is superfluous ("adding head to head"); and equating unresolved Shanghan with Wenbing is erroneous (*Baren Shu*'s attribution of Summer Cold to Heart and Autumn Heat to Lung is fragmented). Tao's attribution of Autumn Warmth to mixed syndromes adds confusion. The proliferation of theories obscures the source, confusing students and aiding no medical practice.

The *Baren Shu* states: In summer, fever, aversion to cold, headache, heavy body/joint pain, and surging pulse indicate Rebing (Heat Disease). Caused by winter cold triggered by summer heat, it is treated like Shanghan: Guizhi Tang (Cinnamon Twig Decoction) for sweating, Mahuang Tang (Ephedra Decoction) for no sweating, Da Qinglong Tang (Major Green Dragon Decoction) for irritability. However, summer prescriptions must include cooling herbs. Guizhi Tang, Mahuang Tang, and Da Qinglong Tang require modifications: add Huangqin (Scutellaria Root) before the Summer Solstice; add Zhimu (Anemarrhena Rhizome), Shigao (Gypsum Fibrosum), or Shengma (Cimicifugae Rhizoma) after the solstice. Since Cinnamon Twig and Ephedra are hot-natured, using them in warm southern regions during summer risks inducing jaundice and macules. If Rebing persists beyond three days with rapid pulse and pathogen still in channels (not organs), Guizhi Shigao Tang (Cinnamon Twig and Gypsum Decoction) is indicated. After the solstice, this replaces Guizhi Tang indications; adding Mahuang covers Mahuang/Da Qinglong indications. For late-onset Shanghan from March to summer, Zhizi Shengma Tang (Gardenia and Cimicifuga Decoction) may be used temporarily. (Wang Yutai recorded a case in the Gui Mao year of Wanli: A scholar traveling south in peak summer contracted Shanghan. A student physician, newly versed in Zhang Zhongjing’s works, prescribed Guizhi Tang, resulting in immediate death. Mahuang and Guizhi are for deep winter Shanghan; they are contraindicated for Wenbing and certainly for Rebing.)

Correction: The *Baren Shu*’s use of Guizhi/Mahuang for Warm-Heat diseases, even with cooling additions, inevitably errs in dispersing, leading to danger beyond mere persistent rapid pulse. Failing to recognize half-interior syndromes and continuing to use Guizhi Shigao Tang for exterior-channel pathogens is fatal. Wang Yutai and Wang Lv correctly criticized this, favoring avoidance of Mahuang/Guizhi, far superior to the *Baren Shu*. Ultimately, ignorance of Warm-Heat origins leads to incorrect prescribing.

Regarding Chunwen, the *Baren Shu* attributes it to Clear Qi obstructing warmth, affecting the Liver, causing fever, headache, dizziness, vomiting, similar across ages, treated with Shengma Gegen Tang (Cimicifuga and Pueraria Decoction), Jiemi Tang (Muscle-Releasing Decoction), or Baidu San (Hundred-Toxin Powder) for all seasons. Tao states: From start of Spring to pre-Summer Solstice, non-aversion-to-cold with thirst indicates Wenbing, treated with mild Acrid-Cool herbs to release the exterior; avoid vigorous sweating. For urgent syndromes, use Cold-Cool herbs to attack urgently; avoid erroneous sweating/purging. Exterior syndromes differ from standard Shanghan; interior syndromes are the same.

Regarding Xiawen, the *Baren Shu* attributes it to Cold obstructing Summerheat, affecting the Heart, causing fever, headache, abdominal fullness, spontaneous diarrhea, similar across ages, treated with Lizhong Tang (Regulate the Middle Decoction), Shegan Tang (Belamcanda Decoction), or Banxia Guizhi Tang (Pinellia and Cinnamon Twig Decoction). Tao states: From Summer Solstice onward, headache/fever, non-aversion-to-cold with thirst is Wenbing; increased heat is Rebing. Use Acrid-Cool herbs to release muscle layer; avoid profuse sweating. For interior syndromes, attack urgently with purgatives. Exterior treatment differs from Shanghan; interior treatment is the same.

Regarding Qiuwen, the *Baren Shu* attributes it to Heat obstructing Autumn Coolness, affecting the Lung, with Damp-Heat clashing causing cough, treated with Jinfeicao San (Boiling Grass Powder) or Baicangzhu Tang (White Atractylodes Macrocephala Decoction); for jaundice/yellowing, use Yinchen Wuling San (Artemisia Capillaris and Five-Ingredient Poria Decoction). Tao states: From start of Autumn to pre-Frost Descent, headache/fever, non-aversion-to-cold, body pain, short urine is Shibing (Dampness Disease), treated with Acrid-Cool herbs plus draining/dispersing to release muscle layer; avoid sweating. For interior syndromes, use purgatives. Exterior treatment differs from Shanghan.

Regarding Dongwen, the *Baren Shu* attributes it to excessive Warmth obstructing Winter Cold, affecting the Kidney, recommending Zhenyu Tang (Polygonatum Decoction). Danxi stated: Dongwen arises when seasonal Qi is absent; in harsh winter, when one should conserve, outward leakage occurs. Use tonifying herbs combined with exterior-releasing herbs.

Correction: In high, dry Northwest regions, Dampness is rare; in low, wet Southern regions, prolonged rain causes frequent Dampness injuries. Weather varies independently of seasons, so Dampness syndromes occur anytime, not just post-Autumn equinox. Analyzing Jie’an’s view: Spring is Wenbing, Summer is Rebing; Autumn should not be termed Warm-Heat, yet Winter/Autumn still see Wenbing. He resorts to Dampness explanations, conflating Damp-Heat mixed syndromes. Ignorance that Warmth exists in all four seasons led to omitting Winter. Yutai filled this gap citing Danxi’s "non-seasonal Qi," yet interstitial Qi in winter cannot simply be Dongwen.

The *Baren Shu* discusses Four Seasons' Warmth but misunderstands its origin, blaming Clear Qi in Spring, Cold in Summer, Dryness in Autumn, and Warmth in Winter. These are not the source of Wenbing. Blaming specific organ injuries based on seasonal rulership is rigid and unjust.