治内伤冷物。外感风邪。有汗者方。
白术（三两） 防风（二两） 甘草（一两炙）
上 咀。每服秤三钱。水一盏。生姜三片。同煎至七分。去滓。温服无时。一日止一二服。待二三日。渐渐汗少为
解。
娄全善云。海藏用神术汤。白术汤。发散外寒。此皆和解之意。不使真气散失。犹之丹溪治伤寒表证。用东垣补中
益气汤。其意实相同也。愚以前洁古所制黄 汤。川芎汤。亦同此意。
琥按此方。海藏用以代桂枝汤。前方即用以代麻黄汤者也。仲景桂枝麻黄汤。惟冬月宜用。是二方者。则四时皆
可用之。何也。夫四时分属五行。寒热温凉。各一其气。惟土气化湿。寄王于四时之季。故凡时气之伤人。必兼湿气而
至。所以春病多温湿。夏病多热湿。秋病多凉湿。冬病多寒湿。观上二汤。皆以术为主。专入阳明太阴二经以治湿。又
海藏复制苍白术汤。以治伤寒。而云。上解三阳。下安太阴。即此义也。夫四时之气。从外而来者。即八方之风也。风
从外来。故二方中皆佐以防风。用甘草生姜者。乃辛甘发散之义。至于邪气入于诸经。各随经络。合以岁时。照上方加
减例而用药。斯其效自如神耳。
丹溪治第四女。冒风冷。发热医案中有麻黄人参汤。
（娄氏纲目亦集此方）
麻黄 人参（各五分） 苍术（一钱） 甘草（少许）
上 咀。水煎热服。
琥按上方。即仲景麻黄汤变其制也。与前韩祗和六物麻黄汤。其意相仿。大抵体虚人。病风寒无汗者宜服之。有汗
者禁服。
戴院使治伤寒。初得病时。头疼体痛属太阳经。证治要诀有和解散。
Treats conditions caused by internal injury from cold foods and external contraction of wind pathogens. This formula is indicated for patients who have sweating.
Baizhu (Atractylodis Macrocephalae Rhizoma) (3 liang) Fangfeng (Saposhnikoviae Radix) (2 liang) Gancao (Glycyrrhizae Radix et Rhizoma, prepared with honey) (1 liang)
Crush the above herbs. For each dose, weigh 3 qian, add 1 zhen of water and 3 slices of fresh ginger. Decoct together until the volume reduces to 7/10. Strain the dregs. Take warm at any time. Administer no more than one or two doses per day. Wait for two or three days; when sweating gradually decreases, the disease is considered resolved.
Lou Quanshan stated: Haicang used Shenzhu Tang (Divine Efficacy Powder) and Baizhu Tang to disperse external cold. All these formulas embody the principle of harmonizing, preventing the dispersion of true qi. This is similar to Danxi's treatment of exterior syndromes in Shanghan (Cold Damage), where he used Dongyuan's Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction); their intent is essentially the same. I believe that Huangqi Tang (Astragalus Decoction) and Chuanxiong Tang (Ligustici Chuanxiong Rhizoma Decoction) formulated previously by Jiegou also share this intent.
Wang Hu notes: This formula was used by Haicang as a substitute for Guizhi Tang (Cinnamon Twig Decoction). The previous formula serves as a substitute for Mahuang Tang (Ephedra Decoction). Zhang Zhongjing's Guizhi Tang and Mahuang Tang are suitable for use in winter. These two formulas, however, can be used throughout all four seasons. Why? Because the four seasons correspond to the Five Elements, and cold, heat, warmth, and coolness each possess distinct qi characteristics. Only the earth element generates dampness and its influence prevails during the last eighteen days of each season. Therefore, whenever seasonal pathogens injure the human body, they inevitably carry dampness. Thus, spring diseases often involve warm-dampness, summer diseases hot-dampness, autumn diseases cool-dampness, and winter diseases cold-dampness. Observing the aforementioned two formulas, both rely primarily on Baizhu (Atractylodis Macrocephalae Rhizoma), which specifically enters the Yangming and Taiyin meridians to treat dampness. Furthermore, Haicang created Caibaizhu Tang (White and Black Atractylodes Decoction) to treat Shanghan, stating it "releases the three yang layers externally and stabilizes the taiyin internally," which illustrates this principle. The qi of the four seasons, entering from outside, constitutes the winds from the eight directions. Since wind comes from the exterior, Fangfeng (Saposhnikoviae Radix) is added as an assistant herb in both formulas. The use of Gancao (Glycyrrhizae Radix et Rhizoma) and Shengjiang (Zingiberis Rhizoma Recens) follows the principle of "pungent and sweet induces dispersal." As for pathogens entering various meridians, medication should be adjusted according to the meridian pathways and seasonal changes, following the examples of addition and subtraction in the above formulas. In this way, efficacy will naturally be miraculous.
Danxi treated his fourth daughter, who contracted wind-cold and developed fever. (The medical record mentions Mahuang Renshen Tang).
(Lou's Gangmu also collected this formula.)
Mahuang (Ephedrae Herba) Renshen (Ginseng Radix) (each 5 fen) Cangzhu (Atractylodis Rhizoma) (1 qian) Gancao (Glycyrrhizae Radix et Rhizoma) (a small amount)
Crush the herbs, decoct with water, and take hot.
Wang Hu notes: The above formula is a modification of Zhang Zhongjing's Mahuang Tang (Ephedra Decoction). It shares similar intent with Han Zhihe's Liwu Mahuang Tang (Six-Ingredient Ephedra Decoction) mentioned earlier. Generally, it is suitable for individuals with deficient constitution suffering from wind-cold without sweating. It is contraindicated for those with sweating.
Dai Yuan Shi treated a patient with Shanghan (Cold Damage). At the onset of illness, headache and body pain indicated involvement of the Taiyang meridian. (Hejie San (Harmonizing Powder) is recorded in Zhengzhi Yaojue).