小儿初生，饮食未开，胃气未动，廓然清虚之府，宜乘此时加意调燮。于儿未啼之时，令精巧妇女轻指探
儿口，挖去污血，随以甘草汤，用软帛裹指蘸汤，拭去口中涎沫。然后看儿面色，若身面俱红，唇舌紫赤，知
其必有胎毒。每日用盐茶，但不可太咸，以帛蘸洗其口，去其粘涎，日须五六次。此法至神至异，世所不知。
盖儿之胎毒，藏于脾胃，口中多有粘涎，其马牙、鹅口、重舌、木舌，皆从此起。每日洗拭，则毒随涎去，病
从何来？而且至简至易，何忽视而不为？倘胎毒重，直须洗过周岁方得。此有毒者之调燮也。倘儿面唇淡红，
此为胎寒，不可用茶，惟以淡姜汤洗拭，每日一二次足矣。盖姜能开胃，而且和中，最切于时用者。至于古方
之用黄连、大黄、朱砂、轻粉开口之法，此时断不可用。今时禀受，十有九虚，苦寒克削，最不相宜。况婴儿
初诞，如蛰虫出户，草木萌芽，卒遇暴雪严霜，未有不为其僵折者，以苦寒而入有涎之口，亦若是也。每见三
朝七日，必有肚疼、呕乳、泄泻、夜啼之证，是
皆苦寒伤胃之害，其孰能知之！
或曰∶子言苦寒不可用于初涎之口，何以后之沆瀣丹及泻青丸，有三黄大黄，得无矛盾乎？曰∶彼胎毒已
现，外证可凭，有病病当，何大黄之足畏！今初涎开口，未辨毒之有无，即使有毒，尚然未发，深藏潜伏，声
臭俱泯。程凤雏有言∶正如闾问无事时，未可执平人而诛之曰，尔将为寇也。以苦寒而开口，是诛平人也；毒
发而畏苦寒，是有寇不诛，乌乎可也？
小儿刚出生时，饮食功能尚未开启，胃气尚未发动，身体如同空旷清虚的府邸，应当趁此时机特别注意调理。在婴儿尚未啼哭之前，让灵巧的妇女用指尖轻轻探入婴儿口中，挖出污血，随后用甘草汤，以软布包裹手指蘸取药汤，擦拭去除口中的涎沫。然后观察婴儿的面色，如果全身和面部都发红，嘴唇和舌头呈现紫红色，就知道他必然有胎毒。每天用盐茶（淡盐水），但不可太咸，用布蘸着清洗他的口腔，去除粘腻的涎液，每天必须清洗五六次。这种方法极其神奇奇妙，世人并不知晓。因为婴儿的胎毒，潜伏在脾胃之中，口中往往有很多粘涎，那些马牙、鹅口疮、重舌、木舌等病症，都是从这开始的。每天清洗擦拭，毒素就会随着涎液排出，疾病从何而来？而且方法极其简单容易，为何忽视而不去做呢？如果胎毒严重，甚至需要清洗到满周岁才行。这是针对有胎毒婴儿的调理方法。倘若婴儿面色和嘴唇呈淡红色，这属于胎寒，不可以用茶水，只能用淡姜汤清洗擦拭，每天一两次就足够了。因为生姜能开胃，而且能调和脾胃，是最切合当时需要的药物。至于古代方剂中使用黄连、大黄、朱砂、轻粉来“开口”的方法，此时绝对不可使用。现今出生的婴儿，十有八九体质虚弱，苦寒性质的药物攻伐削弱正气，最不相宜。况且婴儿刚出生，就像冬眠的虫子爬出洞穴，草木刚刚萌芽，突然遇到暴雪严霜，没有不因此僵硬折断的，用苦寒药物进入有涎液的口中，也是同样的道理。我常见到出生后第三天和第七天，必然出现肚痛、呕吐乳汁、腹泻、夜间啼哭等症状，这些都是苦寒药物损伤胃气的危害，谁能知道其中的道理呢！
有人问：您说苦寒药物不可用于初生婴儿的口腔，为什么后来的沆瀣丹及泻青丸中，含有三黄和大黄，这不是自相矛盾吗？回答说：那些情况是胎毒已经显现，外在症状可以作为依据，有病治病，有什么可畏惧大黄的！现在初生婴儿开口，尚未辨别是否有毒，即使有毒，也尚且未发作，深深隐藏潜伏，声音气味都完全消失。程凤雏说过：正如街坊邻里平安无事时，不可拿着平民百姓而诛杀他说，你将成为强盗。用苦寒药物来“开口”，就是诛杀无辜平民；毒发之后却畏惧使用苦寒药物，是有强盗却不诛杀，怎么可以呢？
When a newborn infant is first born, the digestive function has not yet opened, and the Stomach Qi (Stomach Energy) has not yet moved. The body is like an empty and clear cavity; it is advisable to pay special attention to regulation during this period. Before the infant cries, let a skilled woman gently probe the infant's mouth with her finger to remove dirty blood. Then, using Licorice Root Decoction (Gancao Tang), wrap a soft cloth around the finger, dip it in the decoction, and wipe away the saliva in the mouth. Afterward, observe the infant's complexion. If the body and face are both red, and the lips and tongue are purple-red, it can be known that there must be fetal toxin (Tai Du). Every day, use salted tea (weak saline solution), but do not make it too salty. Dip a cloth in it to wash the mouth, removing sticky saliva. This should be done five or six times daily. This method is extremely miraculous and strange, yet unknown to the world. The reason is that the infant's fetal toxin resides in the Spleen and Stomach, and there is often much sticky saliva in the mouth. Conditions such as "horse teeth" (epithelial pearls), "goat's mouth" (oral candidiasis), double tongue, and wooden tongue all originate from this. Daily washing and wiping will cause the toxin to leave with the saliva; how could illness arise? Moreover, the method is extremely simple and easy; why ignore it and not practice it? If the fetal toxin is severe, washing may need to continue until the child is one year old. This is the regulation for infants with toxic conditions. If the infant's face and lips are pale red, this indicates fetal coldness. Tea should not be used; instead, only weak ginger water should be used for washing and wiping, once or twice a day at most. Ginger can stimulate appetite and harmonize the middle jiao, making it most suitable for current needs. As for ancient formulas using Coptis Rhizome (Huanglian), Rhubarb (Dahuang), Cinnabar (Zhusha), and Calomel (Qingfen) for "opening the mouth," these methods must absolutely not be used at this time. Infants born today are deficient in constitution nine out of ten times. Bitter-cold herbs that attack and weaken are most inappropriate. Furthermore, a newly born infant is like a hibernating insect emerging from its hole or grass and trees just sprouting; suddenly encountering heavy snow and severe frost, they would inevitably become stiff and broken. Using bitter-cold herbs entering a mouth full of saliva is exactly the same. I often see that on the third and seventh days after birth, symptoms such as abdominal pain, vomiting milk, diarrhea, and night crying inevitably appear. These are all harms caused by bitter-cold herbs damaging the Stomach Qi. Who can understand this!
Someone might ask: You say bitter-cold herbs cannot be used for the mouth of a newborn, so why do later formulas such as Hangxie Dan and Xieqing Wan contain Sanhuang (Three Yellows) and Dahuang? Is this not contradictory? I reply: In those cases, the fetal toxin has already manifested, and external signs provide evidence. When there is disease, treat the disease; why fear Dahuang! Now, when opening the mouth of a newborn, whether there is toxin or not has not been distinguished. Even if there is toxin, it has not yet erupted; it is deeply hidden and latent, with no sound or odor. Cheng Fengchu said: Just as when a neighborhood is peaceful and without incident, one cannot seize an ordinary person and execute him saying, 'You will become a bandit.' Using bitter-cold herbs to "open the mouth" is executing an innocent person; fearing bitter-cold herbs after the toxin erupts means failing to punish bandits when they exist. How can this be acceptable?