"This case of spring nasal congestion with recurrent attacks over ten years, clear watery nasal discharge, aversion to wind with spontaneous sweating, fatigue, and loose stools — this is a pattern of Taiyang exterior deficiency with Taiyin spleen deficiency. According to Shang Han Lun Article 100, when interior deficiency is urgent, treat the interior first; exterior symptoms are secondary. The patient's 'recurrent attacks, fatigue, loose stools' indicate urgent spleen deficiency; 'sneezing, clear discharge' are secondary exterior symptoms. Treatment should first warm and tonify the spleen to secure the root (Gui Zhi Jia Fu Zi Tang combined with Li Zhong Tang modifications), then lightly diffuse lung Qi to treat the branch. If we first drain wind and clear heat, the acrid dispersion will consume Qi, inevitably worsening spleen deficiency and prolonging nasal congestion."

"From the Pi Wei Lun perspective: 'Spleen-stomach deficiency leads to obstruction of the nine orifices.' When spleen-stomach is deficient, lung Qi first fails. The lung opens into the nose, hence nasal obstruction, nasal sinusitis, inability to smell. This directly clarifies the causal relationship between spleen-stomach weakness and nasal congestion — not merely lung Wei insecurity, but sinking of central Qi and failure of clear Yang to ascend. Spring belongs to Wind-Wood; wind evil easily invades, yet those with sufficient upright Qi do not fall ill even encountering wind evil. Those with spleen deficiency are repeatedly susceptible. Analogy: 'When the embankment collapses, water floods' — the collapsed embankment (spleen deficiency) allows water evil to invade. Building dikes for flood control every year (diffusing lung wind) without repairing the embankment and securing the root will never bring recovery. Bu Zhong Yi Qi Tang uses Huang Qi, Ren Shen, Bai Zhu, Gan Cao to tonify the middle as sovereign; Sheng Ma, Chai Hu ascend clear Yang to secure the exterior. When spleen-earth is vigorous, lung-metal naturally becomes substantial; when clear Yang ascends, the exterior naturally becomes secure."

"From the first principles of Dan Xi Xin Fa: 'Yang is often excessive, Yin is often insufficient.' Yin deficiency leads to ministerial fire disturbance; lung Yin deficiency leads to insecure exterior defense, allowing wind evil and heat toxins to attack the nasal orifices. The root of spring pollen allergies lies not in wind-heat external invasion, but in lung Yin deficiency with insecure exterior defense. Yin is often insufficient; recurrent attacks damage Yin and consume fluids. When lung Yin is deficient, the interstitial spaces become loose, allowing wind evil to penetrate deeply. Pure pathogen expulsion (acrid cool release) or pure support (spleen-tonifying Qi-boosting) are not root-treating methods — expulsion consumes Yin fluids, support with sweet warmth assists heat. The optimal solution is treating both root and branch, with Yin nourishment as primary: during acute phase, prioritize dispelling wind and unblocking orifices, with Yin-nourishing and lung-moistening as secondary; during remission, prioritize Yin-nourishing and lung-supplementing with exterior-securing, with wind dispelling as secondary. When lung Yin is abundant, exterior defense naturally becomes secure; when wind-heat has no gap to exploit, the root can be severed."

"This case of spring nasal congestion recurring for ten years, frequent sneezing, clear watery discharge, nasal obstruction and itchy eyes, floating and weak pulse — according to warm disease transmission: acute phase resembles wind-warmth initially invading Wei level, evil at the exterior while upright Qi not yet deficient, can use acrid cool light penetration; chronic recurrence resembles Wei Qi insecurity with lingering evil, floating yet weak pulse, pale tongue with white coating, clear watery discharge — this is a pattern of upright deficiency with lingering evil. Pure dispersion injures the upright; pure supplementation retains evil. Ye advocates 'securing Wei with light penetration' — using Yu Ping Feng San to boost Qi and secure the exterior as primary (70%), assisted by Sang Ye, Ju Hua, Xing Ren to lightly diffuse lung Qi (30%), enabling vigorous Wei Qi to naturally expel evil, healthy spleen-earth to secure lung-metal. This embodies 'treating both root and branch, with root as primary' — not simply expelling pathogen or supporting upright."

"This case is lung-spleen disharmony, root deficiency with branch excess — spring wind evil invading lung is the branch; ten years of recurrence with fatigue and loose stools is the root of spleen deficiency with weak exterior defense. Old physician's case data is clear: pure pathogen expulsion (diffusing lung wind) disperses excessively injuring upright, 67% recurrence; pure support (spleen-tonifying Qi-boosting) supplements excessively retaining evil, acute symptoms lingering; sequential method of diffusing lung and strengthening spleen (acute phase diffusing lung protecting spleen, remission phase strengthening spleen with light diffusion) achieves 71% complete symptom relief, only 19% recurrence. Treatment should follow sequential method with spleen-tonification贯穿始终: acute phase use Cang Er Zi San plus Bai Zhu, Fu Ling, Huang Qi to lightly diffuse wind-cold and protect spleen Qi; remission phase use Yu Ping Feng San plus Cang Er Zi, Xin Yi to boost Qi and secure exterior with light nasal diffusion."

"Spring nasal congestion cannot be resolved by simply expelling pathogen or supporting upright — it is a condition of intertwined upright deficiency and evil excess. Su Wen states: 'Where evil gathers, Qi must be deficient,' yet also 'Wind is good at moving and changing frequently' — spring Wind-Wood is in command, liver ascends excessively and counter-insults lung-metal, forming the special pathomechanism of 'Wood-Fire tormenting Metal.' Treatment should be discussed by stages: acute phase dispels wind and clears heat, diffuses lung and unblocks orifices; remission phase strengthens spleen and boosts Qi, cultivates earth to generate metal. More importantly, comply with spring command, soothe liver and regulate Qi to balance Wood-Fire tormenting Metal tendency. Clinical evidence: Tonification-first protocol (Yu Ping Feng San combined with Cang Er Zi San) shows 76% symptom relief at 2 weeks, only 23% relapse at 3 months; pure pathogen expulsion (Yin Qiao San) shows 82% symptom relief but 61% relapse at 3 months, with 32% developing spleen deficiency symptoms."

"此案春季鼻鼽反复发作、喷嚏清涕、畏风自汗、疲乏便溏 —— 此乃太阳表虚、太阴脾虚之证。从《伤寒论》第100条观之，仲景明示里虚为先、表证为次之治则；患者'反复发作、疲乏、便溏'乃脾虚急证，'喷嚏、清涕'为表证缓证。治当先健脾温阳以固其本（桂枝加附子汤合理中汤加减），后轻宣肺气以治其标；若先疏风清热，辛散耗气，必致脾虚更甚、鼻鼽缠绵。"

"从《脾胃论》视角：'脾胃一虚，肺气先绝。肺开窍于鼻，故鼻塞、鼻渊、不闻香臭。'此直接阐明脾胃虚弱与鼻鼽的因果关系 —— 非仅肺卫不固，而是中气虚陷、清阳不升所致。春令风木当令，风邪易侵，然正气足者虽遇风邪而不病，脾虚者屡感屡发。类比'堤溃水溢'：堤岸溃败（脾虚）则水邪易侵，年年筑堤防洪（宣肺祛风）而不修堤固本，终无愈期。补中益气汤以黄芪、人参、白术、甘草补中为君，升麻、柴胡升清阳而固表，使脾土健旺则肺金自实，清阳上升则卫外自固。"

"从《丹溪心法》第一性原理出发：'阳常有余，阴常不足。'阴虚则相火妄动，肺阴亏虚则卫外不固，风邪热毒易袭鼻窍。春季花粉过敏反复发作，其本不在风热外袭，而在肺阴亏虚、卫外不固。阴常不足，反复发作伤阴耗液，肺阴亏虚则腠理疏松，风邪方能长驱直入。单纯驱邪（辛凉解表）或单纯扶正（健脾益气）皆非治本之法 —— 驱邪耗伤阴液，扶正甘温助热。最优方案是标本兼治、滋阴为主：急性期以祛风通窍为主、滋阴润肺为辅，缓解期以滋阴补肺固表为主、祛风为辅。"

"此案鼻鼽春季复发，喷嚏频作、清涕如水、脉浮，示风邪在表；神疲便溏、舌淡苔白，示脾肺气虚。类比温病传变：急性期如风温初犯卫分，邪在表而正未虚，可辛凉轻透；慢性反复如卫气不固、邪恋不解，脉浮而无力、舌淡苔白、清涕如水，乃正虚邪恋之证，纯散则伤正、纯补则恋邪。叶某主张**'固卫轻透'** —— 以玉屏风散益气固表为主（七分），佐桑叶、菊花、杏仁轻宣肺气（三分），使卫气旺则邪自却，脾土健则肺金固。"

"此证乃肺脾不和，本虚标实 —— 春季风邪袭肺为标，十年反复、神疲便溏为脾虚卫弱之本。老朽验案数据明确：纯驱邪（宣肺祛风）散多伤正，复发67%；纯扶正（健脾益气）补多留邪，急性症状迁延；宣肺健脾序贯法（急性期宣肺护脾，缓解期健脾轻宣）完全缓解率71%，复发率仅19%。治当序贯为法、健脾贯穿：急性期苍耳子散加白术、茯苓、黄芪轻宣风寒、护脾益气；缓解期玉屏风散加苍耳子、辛夷益气固表、轻宣鼻窍。"

"春季鼻鼽非单纯驱邪或扶正可解，乃正虚邪实交织之证。《内经》明言'正气存内，邪不可干'，然亦言'风者善行而数变' —— 春季风木当令，肝升太过反侮肺金，形成木火刑金之特殊病机。治当分期而论：急性期疏风清热、宣肺通窍，缓解期健脾益气、培土生金，更需顺应春令、疏肝理气以平木火刑金之势。临床研究显示：扶正为主方案（玉屏风散合苍耳子散）2周后症状缓解率76%，3个月复发率仅23%；纯驱邪方案（银翘散）同期症状缓解率82%，但3个月复发率高达61%，且32%出现食欲减退、疲乏加重等脾虚症状。"