麻疹出现全凭热。身不热兮麻不出。潮热和平方为福。症逢不热大非吉。
不热者。谓身温凉而无热也。初起不宜大热。及至正出之时。不宜无热。如不热者。即系逆
候。以宣毒发表汤（见第五条）去升麻、甘草、桔梗、淡竹叶。或葛根解肌汤（见第五条）除甘草、淡
竹叶、赤芍。以疏托之。亦有用越婢汤者。不可以此为法。出尽及收后而不热者。是毒尽也。不须
用药。
朱曰 不热即系逆候。病家常因小儿发热不退。请医生设法退热者。是不知正出之时。
不宜无热也。
越婢汤 治风水恶寒。一身悉肿。脉浮不渴。续自汗出。无大热者。越婢者发越湿土之邪气也。水
湿之气。因风中外流播。两相激抟。势难分解。不得不借麻黄以祛之。从表而越。以石膏清
之。从里而化也。
麻黄（去节五钱） 石膏（八钱） 炙甘草（一钱） 生姜三片。红枣三枚引。水煎。分作三次服。
由麻不怕火烧天。若逢微热休安然。初起之际犹无忌。正出之时却又嫌。
微热者。言热轻而不壮也。初起之时则宜。正出之时。热不宜微。微热则麻出而不能透矣。宜
用疏托之剂。以葛根解肌汤（见第五条）去赤芍、甘草、淡竹叶主之。未收及收后微热者。此毒轻
而尽也。不必用药。
朱曰 自微热至渴热。凡五条。辨证之细。最足增人识见。
麻疹的透发完全依赖于热象。如果身体没有发热，麻疹就无法透出。适度的潮热且脉象平和才是吉兆。若病症表现为无热，则是非常不吉利的征兆。
所谓“不热”，是指体温温和凉爽而没有发热感。在发病初期，不宜出现高热；但到了麻疹正欲透发的时候，体内不应完全没有热度。如果出现无热的情况，就属于逆证（病情向坏的方向发展）。此时应使用宣毒发表汤（参见第五条），去掉升麻、甘草、桔梗、淡竹叶；或者使用葛根解肌汤（参见第五条），去掉甘草、淡竹叶、赤芍，以起到疏风透托的作用。也有使用越婢汤的情况，但不能将其作为固定法则。如果麻疹已经出尽或收没之后仍然不发热，说明毒素已排尽，不需要用药。
朱氏说：无热即属于逆证。家长常因小儿发热不退而请医生设法退热，这是不知道在麻疹正欲透发之时，体内是不应该没有热度的。
越婢汤用于治疗风水病，症状包括怕冷、全身浮肿、脉浮、口不渴、持续自汗出、体表没有大热。越婢的意思是发散湿土之邪气。水湿之气，因为风邪侵袭中焦而流布全身，两者相互激荡搏结，形势难以分解，不得不借助麻黄来祛除它，使其从体表发散出去；用石膏来清解它，使其从内部化解。
药材组成：麻黄（去节，五钱）、石膏（八钱）、炙甘草（一钱）、生姜三片、红枣三枚（作为药引）。用水煎煮，分三次服用。
既然出了麻疹就不怕火烧天般的壮热，但如果遇到微热也不要掉以轻心。在发病初期，微热尚且无妨；但在麻疹正欲透发的时候，却忌讳微热。
所谓“微热”，是指热度轻微而不强烈。在发病初期是适宜的，但在麻疹正欲透发的时候，热度不宜微弱。如果热度微弱，麻疹虽然能发出但不能透彻。适宜使用疏托的方剂，以葛根解肌汤（参见第五条）去掉赤芍、甘草、淡竹叶为主进行治疗。如果在未收没及收没之后仍有微热，这说明毒素轻微且已排尽，不必用药。
The eruption of measles relies entirely on heat. If the body is not hot, the measles will not erupt. A tidal fever that is moderate and accompanied by a harmonious pulse is auspicious. However, if the condition presents with no heat, it is highly inauspicious.
"No heat" refers to a body temperature that is warm and cool without fever. In the initial stage, high fever is not suitable; but when the measles are about to erupt properly, there should not be an absence of heat internally. If no heat is present, it constitutes a *ni zheng* (adverse syndrome/reversal pattern). At this point, one should use Xuan Du Fa Biao Tang (See Clause 5), removing Shengma (Cimicifugae Rhizoma), Gancao (Glycyrrhizae Radix et Rhizoma), Jiegeng (Platycodonis Radix), and Dan Zhu Ye (Lophatheri Herba); or alternatively, use Gegen Jie Ji Tang (See Clause 5), removing Gancao (Glycyrrhizae Radix et Rhizoma), Dan Zhu Ye (Lophatheri Herba), and Chishao (Paeoniae Radix Rubra), to employ methods of dispersing and supporting the eruption. There are also cases where Yuebi Tang is used, but this should not be taken as a fixed rule. If there is no heat after the measles have fully erupted or subsided, it indicates that the pathogenic toxins have been exhausted, and no medication is required.
Zhu stated: The absence of heat constitutes an adverse syndrome. Parents often invite doctors to reduce fever because their children's fever persists, not realizing that during the proper eruption phase, the presence of internal heat is necessary.
Yuebi Tang treats Feng Shui (Wind-Edema) characterized by aversion to cold, generalized edema, floating pulse, thirstlessness, continuous spontaneous sweating, and absence of significant heat on the body surface. "Yuebi" means to vent the pathogenic qi of damp-earth. The qi of water and dampness, having invaded the middle and spread externally due to wind, agitates and knots together, making separation difficult. It is therefore necessary to borrow Mahuang (Ephedrae Herba) to dispel it, allowing it to vent from the exterior; and use Shigao (Gypsum Fibrosum) to clear it, allowing it to transform from the interior.
Ingredients: Mahuang (Ephedrae Herba) (remove nodes, 5 qian), Shigao (Gypsum Fibrosum) (8 qian), Zhi Gancao (Prepared Glycyrrhizae Radix et Rhizoma) (1 qian), Shengjiang (Zingiberis Rhizoma Recens) (3 slices), Hongzao (Jujubae Fructus) (3 pieces, as a guide). Decoct in water and divide into three doses for administration.
Since the emergence of measles makes one fearless of intense heat like fire burning the sky, one should not remain complacent if slight heat is encountered. In the initial stage, slight heat is still acceptable; but during the proper eruption phase, slight heat is undesirable.
"Slight heat" refers to mild intensity that is not vigorous. It is appropriate in the initial stage, but during the proper eruption phase, the heat should not be slight. If the heat is slight, the measles may emerge but fail to penetrate thoroughly. One should use dispersing and supporting formulas, primarily using Gegen Jie Ji Tang (See Clause 5) with Chishao (Paeoniae Radix Rubra), Gancao (Glycyrrhizae Radix et Rhizoma), and Dan Zhu Ye (Lophatheri Herba) removed. If there is slight heat before the measles subside or after they have subsided, it indicates that the toxins are mild and have been exhausted, so medication is unnecessary.
Zhu stated: From slight heat to thirsty heat, there are five clauses in total. The differentiation of syndromes is very detailed, which is most sufficient to enhance one's understanding.