神魂魄意智，五脏之正神也。喜怒悲忧恐，五脏之情伪也。人之五脏调畅则安适，抑郁
则烦闷。故小儿疮疹者，蕴非常之热毒，为疮疹而外未得出，在脏腑而不能散，故喜怒不常
，悲恐相仍，则神不能安，而朝夜啼哭也。当此医者察其蕴毒在表在里，当随证渗泄。若发
热渴水，面赤小便赤，宜微表令出可也。若外无热，大便秘，腹胀满者，当令大便通。大抵
内无壅滞之气，则荣卫通行，神魂泰然，疮疹亦出快矣。昧者不知察，惟见朝夜啼哭，或以
为心热，或以为聚痰，或凉或下，不能去其表里热毒，复使其冷热相并，反生多疾，不可不
知。
疮疹结脓痂，可抓碎之，则不成瘢痕。今疮痂虽结，瘢犹靥肌肉，致令凸凹也。故在结
脓未成干 ，抓去之则不成瘢痕矣。有疮疹愈而再生者，此因疮疹安后失解利，毒瓦斯留滞败
热于肌肉之间也。宜用明胶散，次服密陀僧散、腻粉散、鹰屎白散、牡蛎散、马齿苋散、秦
皮散等，以敷之为良。与其用药于已再生疮疹之后，莫若解毒于未再成疮疹之先。
脾胃纳谷气，大小肠出滓粕，此平居察虚实冷热之处。盖饮食进退，则知人谷气之虚实
，大小便滑涩则知人之冷热也。热则秘涩而不通，冷则滑泄而无度。今大便如常，则知脏腑
平和，无大热大冷之患，故不在补泻，亦不可妄攻击也。且《活人书》云∶清便自调，则是
大便如常。又云∶大便坚，小便数，不可用承气汤攻之，是津液已行于小便。故但以麻仁脾
约丸用之可了。小便清者不可下，此无里热也。大便硬而小便少者未可攻，此津液当还入胃
中，大便自过也。阳明病自汗出，若发汗，小便自利者，不可下，此表里皆亡津液也。又云
∶小便赤，却当下，此是表里证俱见，以五苓散主之。又云∶不大便六七日，头疼有热者，
是里证，当下，小便清者，知不在里，仍在表。又云∶大便硬而脉沉细，是里证，当下。以
此观之，古人治病，未有不审饮食进退、大小便滑涩者。自外而知里，此非专治疮疹之法，
若害疮疹或医他病，用之亦良，况婴童未能言者，尤当用此。
神魂魄意智，是五脏所藏的正神。喜怒悲忧恐，是五脏的情志表现。人的五脏功能调畅则身体安适，若情志抑郁则会产生烦闷感。因此，小儿患疮疹时，体内蕴藏着强烈的热毒，因疮疹未能顺利透发于体表，热毒滞留于脏腑无法消散，导致情绪喜怒无常，悲伤恐惧接连不断，使得心神不能安宁，从而日夜啼哭。此时医生应诊察热毒是在表还是在里，应当根据证候进行渗湿泄热。如果出现发热、口渴想喝水、面色发红、小便颜色深红等症状，适宜用轻微的解表法使邪气透出。如果体表没有发热，但大便秘结、腹部胀满，则应当通导大便。大体上而言，如果体内没有壅滞的气机，那么营卫之气就能通行顺畅，心神安定，疮疹也能顺利快速地发出。愚昧的医生不知诊察，只看到孩子日夜啼哭，有的认为是心经有热，有的认为是痰积，或者使用寒凉药，或者使用泻下药，不仅不能去除表里的热毒，反而使冷热之邪交织，导致产生多种疾病，这一点不可不知。
疮疹结成脓痂后，可以将其抓破，这样就不会留下瘢痕。如今虽然疮痂已经形成，但疤痕处的皮肤仍像酒窝一样凹陷不平，导致肌肤凹凸不平。所以在脓痂未完全干燥之前，将其抓去就不会形成瘢痕。有些患儿疮疹痊愈后又重新长出新的皮疹，这是因为在疮疹病情稳定后，未能及时给予清解利导的治疗，导致毒气和残留的热邪停滞在肌肉之间。适宜使用明胶散，随后服用密陀僧散、腻粉散、鹰屎白散、牡蛎散、马齿苋散、秦皮散等药物外敷，这是良好的治疗方法。与其在疮疹再次长出之后用药，不如在疮疹尚未再次形成之前进行解毒。
脾胃负责受纳水谷之气，大小肠负责排出糟粕，这是平时诊察人体虚实和冷热状况的关键部位。通过观察饮食的增减，可以了解人体水谷之气的虚实情况；通过观察大小便的通利或涩滞，可以了解人体的冷热状况。热邪会导致大便干结涩滞不通，寒邪会导致大便滑泄无度。现在患儿大便正常，说明脏腑平和，没有大热或大冷的病患，因此不需要补益或攻泻，也不可以妄加攻击。况且《活人书》中说：大小便调和正常，就是大便如常。又说：大便坚硬，小便频数，不可使用承气汤攻下，因为津液已经偏渗于小便中。所以只需使用麻仁脾约丸治疗即可。小便清长者不可攻下，这说明体内没有里热。大便硬而小便少者暂时不可攻下，这是因为津液应当回归胃中，大便自然会通畅。阳明病自汗出，如果误用发汗法，导致小便自利（过多），则不可攻下，这是因为表和里的津液都已耗伤。又说：小便赤黄，却应当攻下，这是表里证候俱见，以五苓散为主治方剂。又说：六七天不大便，伴有头痛发热，这是里证，应当攻下；但如果小便清长，说明病不在里，仍在表。又说：大便硬且脉象沉细，这是里证，应当攻下。由此看来，古人治病，没有不审察饮食增减、大小便通利与否的。由外在症状推断内在病变，这并非专门治疗疮疹的方法，如果是患有疮疹或其他疾病，使用这些原则也是很好的，何况婴幼儿不能言语表达，更应当运用此法。
The Shen (Spirit), Hun (Ethereal Soul), Po (Corporeal Soul), Yi (Intellect), and Zhi (Will) are the correct spirits residing in the Five Viscera. Joy, anger, sorrow, worry, and fear are the emotional manifestations of the Five Viscera. When the functions of a person's Five Viscera are smooth and harmonious, they feel comfortable and at ease; if emotions are suppressed or depressed, feelings of vexation and stuffiness arise. Therefore, when infants and children suffer from variola (smallpox) or varicella (chickenpox), they harbor intense heat-toxin. Because the rash fails to emerge smoothly to the exterior, the toxin remains stagnant within the Zang-Fu organs and cannot dissipate. This leads to erratic emotions, alternating between joy/anger and sorrow/fear, preventing the Spirit from finding peace, resulting in crying day and night. At this time, the physician must examine whether the accumulated toxin is in the Exterior or the Interior, and should treat according to the syndrome by promoting diuresis and purging heat. If there is fever, thirst with desire for water, flushed face, and dark red urine, it is appropriate to use a mild releasing-the-exterior method to allow the pathogen to exit. If there is no external heat but constipation and abdominal fullness are present, the stool should be unblocked. Generally speaking, if there is no stagnant Qi inside, Ying and Wei (Nutritive and Defensive Qi) will circulate freely, the Spirit will be tranquil, and the rash will emerge quickly and smoothly. Ignorant physicians fail to examine properly; seeing only the day-and-night crying, some attribute it to Heart Heat, others to phlegm accumulation. They either use cooling methods or purgatives, which fail to eliminate the heat-toxin in both the interior and exterior, instead causing cold and heat pathogens to combine, leading to multiple diseases. This point must not be overlooked.
Once the rash forms pus and scabs, scratching them open prevents scar formation. Although the scabs have formed now, the skin where the scars remain resembles moles or pits, causing unevenness. Thus, if the scabs are scratched off before they dry completely, scars will not form. Some patients experience recurrence of the rash after recovery. This occurs because, after the rash condition stabilized, proper clearing and draining treatments were neglected, allowing toxic gases and residual heat to stagnate between the muscles. It is advisable to use Mingjiao San (Mingjiao Powder), followed by Mituoseng San (Mituoseng Powder), Nifen San (Nifen Powder), Yingshibai San (Eagle Droppings White Powder), Muli San (Mussel Shell Powder), Machixian San (Purslane Powder), and Qinpi San (Qinpi Powder) applied externally, which is an excellent approach. Rather than applying medication after the rash has recurred, it is better to detoxify before the rash recurs.
The Spleen and Stomach receive Grain Qi, while the Large and Small Intestines excrete dregs and waste. These are the key areas for assessing deficiency/excess and cold/heat during daily life. By observing changes in diet intake, one can know the deficiency or excess of Grain Qi; by observing the slipperiness or obstruction of urination and defecation, one can determine the cold or heat status of the body. Heat causes constipation and obstruction without passage, while Cold causes slippery diarrhea without limit. Currently, if the stool is normal, it indicates that the Zang-Fu organs are peaceful, without severe heat or cold pathology, so neither tonification nor purgation is needed, nor should reckless attacks be made. Furthermore, the *Huoren Shu* (Book of Living People) states: "If urination and defecation are naturally harmonious, the stool is normal." It also says: "If the stool is hard and urination is frequent, Chengqi Tang should not be used for purgation, as the Body Fluids have already moved into the bladder." Therefore, using Maren Pi Yue Wan (Hemp Seed Spleen-Restriction Pill) is sufficient. If urination is clear, purgation is contraindicated, indicating no Interior Heat. If the stool is hard but urination is scanty, attack is premature, as Body Fluids should return to the Stomach, and the stool will pass naturally. In Yangming Disease with spontaneous sweating, if sweating is induced artificially and urination becomes excessive, purgation is contraindicated because both Exterior and Interior Body Fluids are depleted. It also states: "If urination is red/dark, purgation may be indicated; this presents both Exterior and Interior syndromes, treated primarily with Wuling San." It further states: "No bowel movement for six or seven days with headache and fever indicates an Interior syndrome requiring purgation; however, if urination is clear, the disease is not in the Interior but remains in the Exterior." It also states: "Hard stool with a deep and fine pulse indicates an Interior syndrome requiring purgation." From this, we see that ancient physicians always examined dietary intake and the slipperiness or obstruction of urination and defecation before treating. Inferring the Interior from the Exterior is not a method exclusive to treating rash diseases; whether treating rashes or other illnesses, these principles are beneficial. Especially for infants and young children who cannot speak, this method is particularly applicable.