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Treatment for Jiaoruo (lower limb flaccidity and weakness), generalized numbness and insensitivity, heat-toxic qi invading the Zang organs, chest fullness and blockage preventing free flow, and vomiting immediately after eating.
Duohuo (Angelicae Pubescentis Radix), Mahuang (Ephedrae Herba), Xijiao (Rhinocerotis Cornu) [Note: Rhinoceros horn is banned; modern substitutes like Buffalo Horn Shuiniujiao are used clinically], Banxia (Pinelliae Rhizoma), Dazao (Ziziphi Jujubae Fructus), Wumei (Mume Fructus) (each 3 liang, another version uses Lingyangjiao [Capricornis Cornu]); Guixin (Cinnamomi Ramulus et Cortex interior), Biejia (Testudinis Carapax et Plastrum), Shengma ( Cimicifugae Rhizoma), Juapi (Citri Reticulatae Pericarpium), Zhishi (Aurantii Fructus Immaturus), Gancao (Glycyrrhizae Radix et Rhizoma), Wu Zhu Yu (Evodiae Fructus), Dahuang (Rhei Radix et Rhizoma) (each 1 liang); Shengjiang (Zingiberis Rhizoma Recens), Shigao (Gypsum Fibrosum) (each 6 liang); Beichi (Concha Meretricis et Cyclinae) (7 pieces).
The above seventeen ingredients are coarsely crushed. Decoct with 14 sheng of water until 4 sheng remains. Divide into five doses. Administer three times during the day and twice at night. If not cured, administer up to three courses (ji) until cure is achieved.

Formula for early-stage Hongjiao (Beriberi/Foot Qi), characterized by swelling and pain starting from the feet and extending to the knees and shins:
Take Bi Ma Ye (Ricini Folium), cut and crush, steam, and apply thinly to the affected area. Change two to three times daily until swelling subsides. Bi Ma Zi (Ricini Semen) resembles the tick on cattle, hence the name "Bi Ma" (Castor Bean). In winter, if Bi Ma is unavailable, use Suo Gen (Ammanni Radix or similar local root, often identified as *Abutilon* or *Sida* roots in historical contexts, here referred to as Suo root), crush and grind. Mix three parts root with one part wine lees (Jiu Zao). Steam until hot and apply while warm to the swollen area, as described above. Apply twice daily until swelling subsides. This formula also treats numbness and stubborn bi-syndrome (This formula is not a decoction and arguably should not appear here, but since the preceding three formulas are all from Chancellor Su, they are not separated out.)

Formula for cases where swelling/toxin has progressed to lower abdominal distension and scanty, difficult urination:
Take urine from a prime bull (Wute Niu Niao), 1 sheng per dose. Take twice daily. Discontinue once urination becomes smooth. (*Qianjin Yifang* notes: For emaciated persons, mix two parts urine with one part cow's milk, boil together until a scum forms on the surface, then consume.)

If swelling has subsided but these symptoms persist, urgently administer this decoction (Chancellor Su’s formula is highly effective):
Mahuang (Ephedrae Herba), Shegan (Belamcandae Rhizoma), Renshen (Ginseng Radix), Fuling (Poria), Fangji (Stephaniae Tetrandrae Radix), Qianhu (Peucedani Radix), Zhishi (Aurantii Fructus Immaturus) (each 2 liang); Banxia (Pinelliae Rhizoma), Xijiao (Rhinocerotis Cornu), Lingyangjiao (Capricornis Cornu), Qingmuxiang (Aucklandiae Radix), Juapi (Citri Reticulatae Pericarpium), Xingren (Prunus Armeniacae Semen Amarum), Shengma (Cimicifugae Rhizoma) (each 1 liang); Shengjiang (Zingiberis Rhizoma Recens) (5 liang), Duohuo (Angelicae Pubescentis Radix) (3 liang), Wu Zhu Yu (Evodiae Fructus) (1 sheng).
The above seventeen ingredients are coarsely crushed. Decoct with 12 sheng of water until 4 sheng remains. Divide into five doses. The interval between doses should be approximately the time it takes to walk 20 li. During this interval, consume a small amount of rice porridge to support Stomach Qi. This decoction is administered over two days per course (ji). Continue until pathogenic qi recedes, adjusting according to clinical judgment. If heat is excessive with panting and irritability, add Shigao (Gypsum Fibrosum) 6 liang and Sheng Maidong (Ophiopogonis Radix) 1 sheng, and remove Wu Zhu Yu (Evodiae Fructus). If there is hardness below the heart (epigastrium), add Biejia (Testudinis Carapax et Plastrum) 1 liang.

Generally, Hongjiao (Foot Qi/Beriberi) originated in the Lingnan region and later spread to Jiangdong. Onset is often insidious. Symptoms may include mild pain and numbness, swelling and fullness in both calves, difficulty initiating gait with weakness, upward invasion causing abdominal numbness, alternating chills and fever, constipation and difficult urination, wheezing with qi rushing to the throat, severe dyspnea feeling like suffocation, inability to keep food down due to vomiting, and rebellious qi rising. These are all characteristic signs. If these syndromes are perceived, first administer the Xijiao Xuanfuhua Tang (Rhino Horn and Inula Flower Decoction) (formula listed below).