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(Zhang Zhongjing's original text lacks this treatment method; here, the therapeutic principles from Nanyang Haicang are collected to supplement it.)

Bian Que stated: Tongue retraction and scrotal contraction indicate a fatal condition. Sun Simiao stated: In the disease of Yin-Yang Exchange (Yin Yang Yi), if the testes retract and the tongue protrudes, it is also a fatal condition. Generally, scrotal contraction may result from extreme heat or extreme cold. For cases of extreme heat, purgation may be applicable; for cases of extreme cold, urgent warming is required. For purgation, Da Cheng Qi Tang (Major Order the Qi Decoction) should be used; for warming, Fuzi Sini Jia Zhuyu Tang (Aconite Counterflow Rescue Decoction plus Evodiae Fructus) should be used, combined with moxibustion at Guanyuan (CV 4) and Qihai (CV 6) acupoints, and treatments such as ginger-warming therapy.

The Huorenshu states: In typhoid fever, after six or seven days, if there is irritability, fullness, and scrotal contraction, and the pulse at both cun and chi positions is slightly slow and moderate, this indicates pathogenic invasion of the Foot-Jueyin Liver Meridian. In Jueyin disease, a slightly floating pulse indicates recovery, while a non-floating pulse indicates no recovery. If the pulse is floating and slow, the scrotum will not contract; external symptoms must include fever and aversion to cold, resembling malaria, which indicates impending recovery. Gui Zhi Ma Huang Ge Ban Tang (Cinnamon Twig and Ephedra Half-Dose Decoction) should be used. If the pulses at both cun and chi positions are deep and short, scrotal contraction is certain, indicating toxic pathogens have entered the abdomen. Cheng Qi Tang (Order the Qi Decoction) should be used for purgation. Generally, in typhoid fever, the transmission of pathogens among zang-fu organs follows the pattern where Yang meridians are affected first, subsequently transmitting to Yin meridians. Since Yang governs life-generating processes, Taiyang Water transmits to Foot-Yangming Earth, and then to Foot-Shaoyang Wood, representing minor pathogens. Since Yin governs killing/declining processes, Wood transmits to Foot-Taiyin Earth, Earth to Foot-Shaoyin Water, and Water to Foot-Jueyin Wood. By the sixth or seventh day, transmission reaches the Jueyin Liver Wood meridian. At this stage, qi must shift to overcome Spleen Earth. If Spleen Earth suffers further pathogenic invasion, all five zang and six fu organs become critical. Ying and Wei (nutritive and defensive qi) cease to circulate, leading to deafness, scrotal contraction, unconsciousness, and death. Urgent purgation with Cheng Qi Tang can save five out of ten patients, with one dying. Ancient texts state: Heat disease of the Spleen endangers the five zang organs; furthermore, if Earth is attacked by Wood, death ensues. If on the sixth or seventh day, transmission reaches Jueyin and the pulse becomes slightly slow and slightly floating, these are Spleen-Stomach pulse characteristics. Thus, it is known that Spleen qi is completely unopposed, pathogens have no place to reside. From extreme decline comes prosperity; Ying and Wei will recover, Water ascends and Fire descends, resulting in alternating chills and fever followed by profuse sweating and resolution of the exterior.

Haicang stated: In Jueyin syndrome, symptoms include irritability, fullness, scrotal contraction, obstruction of urination and defecation, fever, thirst with desire to drink, abdominal fullness, and a slightly slow chi pulse. Irritability is due to Fire; fullness is due to Wood. Although roundworms are not vomited, scrotal contraction with tension indicates excessive Wood. The combination of Fire and Wood leads to cold limbs and cyanosis of the fingernails/toenails, obstruction of urination and defecation, and blockage of the pathways. Fever and thirst indicate pathogens are interior; thus, warming and purgative methods are appropriate. In the aforementioned conditions, if urination and defecation are unobstructed, the lower pathway is clear, there is no thirst, and no desire to drink, it indicates pathogens are not interior. In such cases, warming and moxibustion should be used to connect interior and exterior to restore Yang qi. Zheng Yang San (Upright Yang Powder) should be administered.

Zheng Yang San Formula:
She Xiang (Musk, 1 qian, finely ground; nature pungent and warm; treats abdominal urgency, fullness, stagnation, and wind-toxin); Gan Jiang (Dried Ginger, processed); Gan Cao (Licorice Root, honey-fried; each 2.5 qian); Fu Zi (Prepared Aconite Lateral Root, 1 liang, processed, skin and umbilicus removed; nature pungent, salty, and warm; treats wind pathogens, opens orifices, treats abdominal fullness, and scrotal contraction); Zao Jia (Gleditsia Sinensis Fruit, 2 liang, fried in butter, pod removed; nature salty and warm). Grind all into fine powder. Take 2 qian per dose, mixed with white water and taken warm.

Hui Yang Dan (Return Yang Pill):
Liu Huang (Sulfur, 0.5 liang; nature sour, warm, extremely hot; treats heart and abdominal masses, cold phlegm accumulation, left hypochondriac qi, cough with upward rushing qi, cold feet, and weakness); Fu Zi (Prepared Aconite Lateral Root, 0.5 liang); Mu Xiang (Vladimiria Root, 0.5 liang; nature pungent and warm; treats localized cold in muscles, deficiency of vital qi, and essence depletion); Quan Xie (Scorpion, 0.5 liang; nature sweet and pungent; treats all types of wind); Bi Cheng Qie (Galangal Fruit, 0.5 liang; nature pungent and warm; treats cutaneous wind and abdominal distension); Wu Zhu Yu (Evodiae Fructus, washed and stir-fried, 0.5 liang; nature pungent, warm, extremely hot; treats wind-stroke pathogens, indigestion, rebellious qi, benefits the five zang organs, and regulates qi); Gan Jiang (Dried Ginger, 2.5 qian). Grind into powder, mix with wine paste to form pills the size of Sophora japonica seeds. Take 30-50 pills with fresh ginger decoction. Administer two or three doses, ensure warmth with clothing and blankets to induce sweating.