房劳复与阴阳易，二病情异证则同。病后犯色复自病，病传不病易之名。男女俱主
烧散，少腹急痛引阴中，身重少气头眩晕，拘挛热气上冲胸。
【注】男女新愈交接，因而复病，名曰房劳复。男女新愈交接，病男传不病之女，病
女传不病之男，名曰阴阳易，即交易之义也。犯是病者，男以女之 裆，女以男之 裆烧
灰，白汤或酒，日三服之则愈。少腹急痛牵引阴中，身重少气，头目眩晕，四肢拘挛，热
气冲胸，是其证也。
相类伤寒有五证，头疼发热恶风寒，停痰头项不强痛，胸满难息气冲咽。伤食恶食
身无痛，痞闷矢气噫作酸，香港脚脚漆胫肿痛，或为干枯大便难。虚烦微热无表里，内痈能
食审疼缘，肺痈喘咳胸引痛，唾粘腥臭吐脓涎，胃痈当胃痛难近，肠痈肿痛少腹坚，身
皮甲错腹中急，便数似淋证中看。
【注】类伤寒五证，初病之时，皆与太阳表证相类。一曰停痰∶但胸满不得息气，上
冲咽，头项不强痛，与伤寒异耳。一曰伤食∶但身无痛，心下痞闷，矢气，噫气，作酸，吞
酸，与伤寒异耳。一曰香港脚∶但病起自脚，脚膝两胫肿痛，或干枯肿痛，名曰干香港脚，大
便硬难，与伤寒异耳。一曰虚烦∶惟发热而烦，无表里证，与伤寒异耳。一曰内痈∶其
状颇类伤寒，但饮食如故，有痈痛之处，与伤寒异耳。胸中隐痛，或喘或咳，吐唾腥粘，
是肺痈也。当胃作痛，手不可近，是胃痈也。少腹重痛，便数似淋，身皮甲错，是肠痈也。
房劳复与阴阳易，这两种病情不同但证候表现相似。病后犯色欲导致复发称为自病（房劳复），病气传给未患病者称为易（阴阳易）。男女患者均主用烧散治疗，症状包括少腹急痛牵引阴中，身体沉重、气短、头晕目眩，四肢拘挛、热气上冲胸膈。
【注】男女新愈时行房事，因而再次发病，名为房劳复。男女新愈行房事，患病的男性传给未患病的 female，患病的 female 传给未患病的 male，名为阴阳易，即交易之意。患此病者，男性用女性内裤裆部烧灰，女性用男性内裤裆部烧灰，用白开水或酒送服，每日三次即可痊愈。少腹急痛牵引阴中，身体沉重气短，头目眩晕，四肢拘挛，热气冲胸，是其证候表现。
类似伤寒的有五种证候：头痛、发热、恶风寒；停痰证头项不强痛，胸满、呼吸急促、气冲咽喉。伤食证厌恶食物、身体无疼痛，痞闷、矢气、嗳气作酸。香港脚（脚气）证脚膝胫部肿痛，或干枯大便难解。虚烦证微热、无表里证。内痈证能进食、审察疼痛缘由：肺痈证喘咳、胸痛牵引、唾粘腥臭吐脓涎；胃痈证胃痛剧烈、手不可近；肠痈证少腹坚硬肿痛、身皮甲错、腹中急迫、便数似淋证，需从中辨别。
【注】类伤寒五证，初起之时，皆与太阳表证相类似。一是停痰：仅见胸满不得呼吸，气上冲咽喉，头项不强痛，这与伤寒不同。二是伤食：仅见身体无疼痛，心下痞闷，矢气，嗳气，作酸，吞酸，这与伤寒不同。三是香港脚：仅见病起于脚，脚膝两胫肿痛，或干枯肿痛，名为干香港脚，大便硬难，这与伤寒不同。四是虚烦：仅见发热而烦，无表里证，这与伤寒不同。五是内痈：其状颇像伤寒，但饮食如常，有痈痛之处，这与伤寒不同。胸中隐痛，或喘或咳，吐唾腥粘，是肺痈。当胃作痛，手不可近，是胃痈。少腹重痛，便数似淋，身皮甲错，是肠痈。
Fanglao Fu (Relapse due to Sexual Exhaustion after Recovery) and Yinyang Yi (Yin-Yang Exchange), although the pathogenesis of these two conditions differs, their clinical manifestations are similar. Relapse caused by sexual activity after illness is termed self-relapse (Fanglao Fu), while transmission of the disease from a sick person to a healthy partner is termed exchange (Yinyang Yi). For both male and female patients, the primary treatment involves using "Shao San" (Burned Powder). Symptoms include acute pain in the lower abdomen radiating to the genitalia, heaviness of the body, shortness of breath, dizziness, tetanic spasms of the limbs, and a sensation of hot qi rushing up to the chest.
[Annotation] When sexual intercourse occurs shortly after recovery, leading to relapse, it is named Fanglao Fu (Relapse due to Sexual Exhaustion). If a recovered male transmits the condition to a healthy female, or a recovered female to a healthy male, it is named Yinyang Yi (Yin-Yang Exchange), implying an exchange of essence. For those suffering from this condition, males should use the crotch area of the female patient's underwear burned to ash, and females should use the crotch area of the male patient's underwear burned to ash. These ashes should be taken with warm water or wine, three times daily, for cure. The symptoms include acute pain in the lower abdomen radiating to the genitalia, heaviness of the body, shortness of breath, dizziness, tetanic spasms of the limbs, and hot qi rushing to the chest.
There are five types of syndromes resembling Taiyang Exogenous Disease (Taiyang Biao Zheng): headache, fever, aversion to wind and cold; Phlegm Retention syndrome features no stiffness/pain in the head and neck, but presents with chest fullness, difficulty breathing, and qi rushing to the throat; Food Stagnation syndrome features aversion to food, absence of body pain, epigastric stuffiness, flatus, belching with sour regurgitation; Hongxiangjiao (Jiaogi/Foot-rot) syndrome features swelling and pain in the feet, knees, and calves, or dryness with constipation; Deficiency Heat Restlessness syndrome features slight fever and restlessness without exterior or interior signs; Internal Abscess syndrome features normal appetite, requiring examination of the pain source: Lung Abscess presents with wheezing, cough, chest pain radiating to the back, sticky foul-smelling sputum purulent discharge; Stomach Abscess presents with severe stomach pain intolerable to touch; Intestinal Abscess presents with hardness and swelling/pain in the lower abdomen, rough skin like fish scales, abdominal urgency, frequent urination resembling strangury, which must be distinguished carefully.
[Annotation] The five syndromes resembling Taiyang Exogenous Disease initially present similarly to exterior syndromes. First is Phlegm Retention: characterized only by chest fullness, inability to breathe deeply, qi rushing to the throat, and lack of head/neck stiffness, differing from Taiyang Exogenous Disease. Second is Food Stagnation: characterized only by absence of body pain, epigastric stuffiness, flatus, belching, and sour regurgitation, differing from Taiyang Exogenous Disease. Third is Hongxiangjiao (Jiaogi): characterized only by onset in the feet, swelling and pain in the feet, knees, and calves, or dryness and pain (termed Dry Hongxiangjiao), with hard stool, differing from Taiyang Exogenous Disease. Fourth is Deficiency Heat Restlessness: characterized only by fever and restlessness without exterior or interior signs, differing from Taiyang Exogenous Disease. Fifth is Internal Abscess: resembling Taiyang Exogenous Disease in appearance, but with normal diet and specific painful abscess sites, differing from Taiyang Exogenous Disease. Dull pain in the chest, possibly with wheezing or cough, and sticky foul sputum indicates Lung Abscess. Severe pain in the stomach region, intolerable to touch, indicates Stomach Abscess. Heavy pain in the lower abdomen, frequent urination resembling strangury, and rough skin indicate Intestinal Abscess.