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(Attached Discussion)
If the pathogenic factor of Cold Damage (Shanghan) has not been eliminated after nine days or more, it may be because initially only one meridian was affected, thus preventing transmission; or it may have already transmitted through all three Yang meridians but failed to transmit into the Yin meridians.

Qianhu Tang (Antenol Decoction), from *Shenghui Fang*, treats Cold Damage lasting nine days without resolution, characterized by hardness and fullness in the heart and abdomen, body pain, heat inside and outside the body, irritability, vomiting, and restlessness.
Prescription: Qianhu (Peucedani Radix, remove rhizome), Banxia (Pinelliae Rhizoma, wash seven times with hot water to remove slipperiness), Baizhu (Atractylodis Macrocephalae Rhizoma), Zhishi (Immature Bitter Orange, stir-fry with wheat bran until slightly yellow), Chi Shaoyao (Red Peony Root), Huangqin (Scutellariae Radix) (each 1 liang).
Decoction and Administration: The above ingredients are coarsely crushed, added with 3.5 sheng of water, boiled to obtain 1.2 sheng, strained, and taken warm in three doses at any time.

Shigao Tang (Gypsum Decoction), from *Shenghui Fang*, treats Cold Damage for nine days where sweating, emesis, or purgation have failed to resolve the condition, resulting in heat in the Sanjiao (Triple Burner), a slippery and rapid pulse, mental confusion, and heaviness.
Prescription: Shigao (Gypsum Fibrosum, 3 liang), Huangbai (Phellodendri Cortex), Huangqin (Scutellariae Radix) (each 1 liang), Mahuang (Ephedrae Herba, 1 liang, remove roots and joints), Chidou (Fermented Soybean, 2 liang), Huanglian (Coptidis Rhizoma, remove stamens), Chuan Dahuang (Rhei Radix et Rhizoma, 2 liang, soaked in wine), Fuling (Poria, 1 liang).
Decoction and Administration: The above ingredients are coarsely crushed, added with 10 dou of water, first boil Mahuang alone, reduce by 2 dou, skim off the foam, add other herbs, boil to obtain 3 sheng, strain, and take warm in three doses.

Fuling Tang (Poria Decoction), from *Shenghui Fang*, treats Cold Damage after nine days, characterized by vexation and fullness in the chest and diaphragm, difficulty in urination, delirious speech, and inability to turn the body due to stiffness.
Prescription: Chi Fuling (Red Poria, 2 liang), Chaihu (Bupleuri Radix, remove seedlings, 2 liang), Longgu (Fossilized Bones, 2 liang), Chuan Dahuang (Rhei Radix et Rhizoma, 2 liang, cut into pieces and lightly stir-fried), Huangqin (Scutellariae Radix), Renshen (Ginseng Radix, remove rhizome), Moli (Oyster Shell, 2 liang, calcined).
Decoction and Administration: The above ingredients are pounded and sifted into powder. Take 5 qian-bi each time, with 1 zhan of water, add 0.5 fen of fresh ginger and 3 dates, boil to 0.6 zhan, strain, and take warm at any time.

Xijiao San (Rhino Horn Powder), from *Shenghui Fang*, treats Cold Damage for nine days with heat in the Heart and Lung, shortness of breath, and pus and blood in the throat.
Prescription: Xijiao (Hornis Rhinocerotis, shaved, 1 liang), Chaihu (Bupleuri Radix, remove seedlings, 1 liang), Qing Zhuru (Green Bamboo Sap, 1 liang), Jiegeng (Platycodonis Radix, remove rhizome), Chuan Dahuang (Rhei Radix et Rhizoma, cut into pieces and lightly stir-fried), Maidong (Ophiopogonis Tuber, remove heart), Gancao (Licorice Root, honey-fried, slightly red, cut).
Decoction and Administration: The above ingredients are pounded and sifted into powder. Take 5 qian-bi each time, with 1 zhan of water, add 0.5 fen of fresh ginger, boil to 0.6 zhan, strain, and take warm.

Binglang San (Areca Seed Powder), from *Shenghui Fang*, treats Cold Damage for nine days with fullness in the heart, abdominal distension, and急促 breathing.
Prescription: Binglang (Arecae Semen), Helilepi (Pericarpium Terminaliae Chebulae), Chen Jupi (Dried Tangerine Peel, soak in hot water, remove white pith, bake), Gancao (Licorice Root, honey-fried, slightly red, cut, each 0.5 liang), Sanggenbaipi (Mori Cortex, 3 fen, cut).
Decoction and Administration: The above ingredients are pounded and sifted into powder. Take 2 qian-bi each time, with 1 zhong zhan of water, boil to 0.6 zhan, strain, and take warm.

Banxia San (Pinellia Powder), treats Cold Damage lasting nine days without resolution, alternating chills and fever, high fever resembling Warm Malaria, fullness in the chest and diaphragm, and persistent phlegm regurgitation.
Prescription: Banxia (Pinelliae Rhizoma, wash seven times with hot water to remove slipperiness), Chaihu (Bupleuri Radix, remove seedlings, each 2 liang), Gegen (Puerariae Lobatae Radix, cut), Baizhu (Atractylodis Macrocephalae Rhizoma), Renshen (Ginseng Radix, remove rhizome), Chen Jupi (Dried Tangerine Peel, soak in hot water, remove white pith).
Decoction and Administration: The above ingredients are pounded and sifted into powder. Take 2 qian-bi each time, with 1 zhong zhan of water, boil to 0.6 zhan, strain, and take warm.

Mangxiao San (Mirabilite Powder), treats Cold Damage lasting nine days without resolution, fullness and rebellion in the chest and diaphragm, tidal fever in the evening. This is caused by failure to purge, leading to internal excess.
Prescription: Chuan Mangxiao (Natrii Sulfas, 2 liang), Qianhu (Peucedani Radix, 1 liang, remove rhizome), Pipaye (Loquat Leaf, 0.5 liang, remove hairs, honey-fried until slightly yellow), Gegen (Puerariae Lobatae Radix, 1 liang, cut), Chuan Dahuang (Rhei Radix et Rhizoma, 2 liang, soaked in wine).
Decoction and Administration: The above ingredients are pounded and sifted into powder. Take 2 qian-bi each time, with 1 zhong zhan of water, add 3 dates, boil to 0.6 zhan, strain, and take warm.

Da Qianhu Tang (Major Antenol Decoction), treats Cold Damage for eight or nine days without resolution, hardness and fullness in the heart and abdomen, body pain, heat inside and outside the body, irritability, vomiting, and restlessness.
Prescription: Banxia (Pinelliae Rhizoma, half sheng, washed), Shengjiang (Fresh Ginger, 5 liang), Zhishi (Immature Bitter Orange, 8 slices, honey-fried), Qianhu (Peucedani Radix, half sheng), Huangqin (Scutellariae Radix, 3 liang), Gan Zao (Jujube, 12 pieces, split open).
Decoction and Administration: The above ingredients are coarsely crushed, added with 3 sheng of water, boiled to obtain 1.2 sheng, strained, and taken warm in three doses.

Zhang Zhongjing discusses:
Shigao Tang (Gypsum Decoction), treats Cold Damage for eight or nine days, heat in the Sanjiao (Triple Burner), slippery and rapid pulse, mental confusion, high fever, heaviness, and spasms, or merely groaning. Previous purgation failed to relieve the heaviness and spasms because the exterior syndrome was unresolved. Using detoxifying herbs directly would not cure the spasms, while using diaphoretic herbs directly would exacerbate the toxin. This formula uses Sanhuang Tang (Three Yellows Decoction) to save the interior heat and adds herbs to resolve the exterior, hence named Shigao Tang.
Prescription: Shigao (Gypsum Fibrosum), Huanglian (Coptidis Rhizoma), Huangbai (Phellodendri Cortex), Huangqin (Scutellariae Radix) (each 3 liang), Xiangchi (Fermented Soybean, 1 sheng, wrapped in silk), Zhizi (Gardeniae Fructus, 10 pieces, split open), Mahuang (Ephedrae Herba, 3 liang, remove joints).
Decoction and Administration: The above ingredients are coarsely crushed, added with 10 dou of water, first boil Mahuang alone, reduce by 2 dou, skim off the foam, add other herbs, boil to obtain 3 sheng, strain, and take warm in two doses daily. Mild sweating should be maintained. Spasms and vexation will resolve. Several bowel movements indicate the retreat of the toxin. Mind opens, speech normalizes. Avoid meat and cold water.

Guifu Tang (Cinnamon Twig and Aconite Decoction), treats Cold Damage for eight or nine days, wind-dampness clashing, painful and restless body, inability to turn independently, no vomiting or retching, floating, deficient, and choppy pulse. (Text incomplete here).

Baizhu Fu Zi Tang (Atractylodes Macrocephala and Prepared Aconite Decoction), treats Cold Damage for eight or nine days, wind-dampness clashing, painful and restless body, inability to turn independently, no vomiting or thirst, floating, deficient, and choppy pulse.
Prescription: Baizhu (Atractylodis Macrocephalae Rhizoma, 2 liang), Gancao (Licorice Root, 1 liang, honey-fried), Fuzi (Prepared Aconiti Lateralis Radix, one and a half pieces, processed, skin removed).
Decoction and Administration: The above ingredients are cut like hemp seeds. Take 5 qian each time, add 5 slices of fresh ginger, 1.5 zhan of water, boil to 1 zhan, strain, and take warm.

Treats Cold Damage for eight or nine days, extending to ten days or more, severe thirst and vexation, intense heat, and sores in the Sanjiao (Triple Burner). Frequent purging may be needed. Or opening mouth and sticking out tongue, sighing. Eyes... (Text cuts off).
Well point... (Text cuts off).

Treats Cold Damage between eight and nine days, fever resembling mania, unresolved, fullness and pain in the lower abdomen, presence of blood stasis.
Prescription: Taoren (Pruni Semen, 30 pieces, remove skin and tips, stir-fry with bran until red, crush separately), Mengchong (Blatta Orientalis, 30 pieces, remove wings), Shizhi (Hirudo, 20 pieces, each stir-fried), Chuan Dahuang (Rhei Radix et Rhizoma, 1 liang).
Decoction and Administration: The above ingredients are coarsely crushed, added with 5 sheng of water, boiled to obtain 3 sheng, strained, and taken warm in three doses. Black foul matter should be passed in the stool.