伏积热毒，甚者为疮疹，方其荣卫被热毒所蒸，毒出为斑痘，方其出肌肤受痛，静以守
之，则顺出而愈。若加触以不馨之气，兼以行房触犯，阴阳相感，毒瓦斯着于人，则使疮疹入
里，毒瓦斯入心，闷乱而死。若已出之后触则令疮黑烂，极如刀割。纵或疮疹得安，瘢痕经年
黑色，仲景论疮疹未出之间，宜于房室内烧赤术猪甲二物，辟恶气，谨戒饮酒嗜欲，令人守
房室门户，恐生人入有触犯，令小儿疮疹难出也。如有触犯，或有面青黄色者犹轻，要之安
胡荽于左右上下安顿之，能解狐臭杂恶秽污之气，更烧乳香，令室中香不绝，辟除一切恶气
，兼令易出易结痂 ，疮疹畏杂恶气，不可不谨者。譬如柑脯同处，一坏皆坏。古语云∶树
得桂而枯，雌黄遇胡粉而黑，抑亦物类相感云尔。
钱氏论疮疹是母腹中所受秽毒，故小儿患疮疹，五脏皆见证，故前人亦先有以制之也。
《千金论》云∶方婴儿初生，宜进生地黄汁，点孩儿口中，令便下黑秽，则至长亦不害疮疹
，盖便下黑者，此腹中所受秽毒，令人但见简易平直而不用，抑亦顾目前，不思后患者欤。
小儿胃热发斑，其斑既出于肌肤，今疮疹正出，或外被风寒所伏，或毒瓦斯太盛，热毒壅
遏，则出不快。盖毒瓦斯复辄还于里，有误服凉药，使腠理秘，外不得出于肌肤，毒瓦斯倒于里
者，有被恶气熏触，不谨房事，复触入里，甚者皆可为胃烂便血，各随证救之。如风寒所伏
者，当解表而散之，治疮疹麻黄汤是也。内外毒瓦斯壅遏，复入里当解毒，如犀角汤之类是也
，冷气入胃冰伏者，当温之，胃爱散之类是也，恶气熏触，不谨房事触伏者，当烧乳香赤术
猪甲之类，服以苏合香丸等以御之。又有毒瓦斯内外有所感冒陷伏者，急以麻黄汤主之。王氏
手集白花蛇散橄榄核水煮服之，无不立效。如有内外触冒，失于救疗，遂至胃烂便血，此证
最恶，急宜用犀角地黄汤甘草散以解之。解之渐苏醒，疮出者活，神昏冒闷者死。
The latent accumulated heat-toxin, in severe cases, manifests as sores and rashes. When the Ying (Nutritive) and Wei (Defensive) Qi are steamed by the heat-toxin, and the toxin emerges as macules and pustules, causing pain on the skin, one should remain quiet to guard the healthy Qi. In this way, the toxin will smoothly emerge and the patient will recover. If exposed to foul odors or if sexual intercourse is engaged in, violating taboos, leading to a mutual influence of Yin and Yang, the toxic qi attaches to the person, causing the sores and rashes to sink inward. If the toxic qi enters the Heart, it causes mental confusion and death. If touched again after the sores and rashes have emerged, it causes the sores to turn black and rot, feeling as painful as being cut by a knife. Even if the sores and rashes eventually settle, the resulting scars may remain black for years. Zhang Zhongjing discussed that before the sores and rashes emerge, it is appropriate to burn *Atractylodis Rhizoma* (Cangzhu, 苍术) and pig scutes (Zhujia, 猪甲) in the room to repel evil qi. One must strictly abstain from alcohol and sexual desires, and have someone guard the doors and windows of the room to prevent outsiders from entering and causing violations, which would hinder the emergence of the child's sores and rashes. If there is a violation, and the face appears cyan-yellow, the condition is still relatively mild. In summary, placing *Coriandri Fructus* (Huisui, 胡荽) around can resolve fox stench and other foul odors; burning *Boswelliae Resina* (Ruxiang, 乳香) continuously keeps the room fragrant, repelling all evil qi and helping the sores and rashes emerge easily and form scabs. Sores and rashes fear mixed foul odors, so caution is essential. It is like citrus preserves stored together: if one spoils, they all spoil. The ancient saying goes, "Trees wither when encountering Cinnamon Twig," and "Realgar turns black when meeting White Lead Powder." This is also due to the mutual感应 (influence) between different categories of things.
Qian Yi discussed that sores and rashes are caused by the filth-toxin received in the mother's womb. Therefore, when children suffer from sores and rashes, all five Zang organs show signs, so predecessors had methods to control them. The *Qian Jin Fang* states: When an infant is just born, it is appropriate to administer juice of *Rehmanniae Radix* (Shengdihuang, 生地黄) into the child's mouth, causing the discharge of black filth. Then, when grown up, they will not suffer from sores and rashes. The black discharge represents the filth-toxin received in the abdomen. People often find this method too simple and direct to use, perhaps because they only consider the present without thinking of future consequences.
When a child's Stomach Heat triggers macules, although the spots have emerged on the skin, if external Wind-Cold suppresses the eruption, or if the toxic qi is too abundant, causing heat-toxin to stagnate and obstruct, the eruption will be slow. This is because the toxic qi returns inward. Misusing cooling medicines closes the Couli (pores), preventing the toxin from exiting through the skin, causing the toxic qi to invert and sink inward. Alternatively, exposure to foul odors or immoderate sexual activity causes the toxin to sink inward again. Severe cases can lead to gastric ulceration and bloody stools. Treatment should follow the specific syndrome. If suppressed by Wind-Cold, release the exterior and disperse it; *Mahuang Tang* (Ephedra Decoction) for treating sores and rashes is such a formula. If internal and external toxic qi stagnates and re-enters the interior, clear the toxin; *Xijiao Tang* (Rhino Horn Decoction) and similar formulas are used. If cold qi enters the Stomach and freezes it, warm it; *Weiai San* (Stomach-Warming Powder) is such a formula. If triggered by foul odors or immoderate sexual activity, burn *Boswelliae Resina* (Ruxiang, 乳香), *Atractylodis Rhizoma* (Cangzhu, 苍术), and pig scutes (Zhujia, 猪甲), and take *Suhe Xiang Wan* (Styrax Pill) to resist it. For toxic qi affected by external and internal factors and sunk/latent, urgently use *Mahuang Tang* (Ephedra Decoction). Wang Shi's Hand Collection prescribes *Baihua She San* (White Flower Snake Powder) boiled with olive pits, which yields immediate results. If external and internal violations are neglected and untreated, leading to gastric ulceration and bloody stools, this condition is extremely malignant. Urgently use *Xijiao Dihuang Tang* (Rhino Horn and Rehmannia Decoction) combined with Licorice Powder to resolve it. If the patient gradually regains consciousness and the sores emerge, they survive; if they are comatose and confused, they die.