样痘者如一家兄弟，妹妹数人，或兄患痘疮，沿及于弟，而身出数颗，此非己之正
痘，即所谓样痘也。若痘有先标者，此乃自已经位传出，又非可与沿得者，同视世作样
痘也，谬矣。凡兄样于弟，叔样于侄，姊样于妹，男样于女，则其起样者正而不戾，反
是则逆样痘者，可不辨耶。
凡疮疹只出一般者善，纵有并形，尤宜详焉，如先发脓泡，后发疹者，是脾肺相生
也，顺也。先疹后斑者，是心脾相生也，顺也。先发水泡，后发疹者，是肝克脾也，逆
也。先发脓泡，后发斑子者是心克肺也，逆也。先发脓泡，后发水泡，少者是金木两
得，而难杀也，顺也。多者金来克木，或木乘金衰矣，逆也。先水泡，后发斑子，多者
是火乘木衰也，逆也。少者子衰母旺也，顺也。并春脓泡，夏黑陷，秋斑子，冬疹子，
是皆逆也。然疮疹既出，而有逆顺者三，有时之顺逆者，春夏阳气发生，疮疹为顺。秋
冬阳气伏藏，疮疹为逆。有虚实之顺逆者，如大便闭而能食者，是为实、为顺也。如二
便利，而不能食者，是为虚、为逆也。有出入之顺逆者，疮疹出者，为顺，倒靥陷伏者
为逆，此其略也。然凡先见疹子而夹出如水痘者，定是正痘，因疹子耗去荣血，故白似
水痘，但与发散疹子继养荣血，则疹散而痘自成，不可认为水痘，盖疹子从不夹水痘者耳。
样痘（类似天花的皮疹）就像一家人中的兄弟姐妹，如果有几个妹妹，或者哥哥患了天花，传染给弟弟，导致身上只长出几颗，这就不是自己原本的天花，也就是所谓的“样痘”。如果痘疹有先出现在标部（体表浅层或特定部位）的情况，这是自身经气位置传变出来的，又不能与通过接触传染得到的情况混为一谈，世人将其都视为样痘，是错误的。凡是哥哥传给弟弟、叔叔传给侄子、姐姐传给妹妹、男性传给女性，那么最初起病者是正气不偏颇的；反之则是逆证，对于样痘是顺是逆，难道可以不辨别吗？
凡是疮疹只出一种形态的是好的，即使有混合形态，也应当详细分析。比如先发脓疱，后发疹子的，这是脾肺相生，属于顺证。先出疹子后出斑点的，这是心脾相生，属于顺证。先发水泡，后发疹子的，这是肝克脾，属于逆证。先发脓疱，后出斑点的，这是心克肺，属于逆证。先发脓疱，后发水泡，数量少的是金木两得，难以致死，属于顺证。数量多的是金来克木，或者是木乘金衰，属于逆证。先出水泡，后出斑点，数量多的是火乘木衰，属于逆证。数量少的是子衰母旺，属于顺证。如果在春天出脓疱，夏天黑陷，秋天出斑点，冬天出疹子，这些都是逆证。然而疮疹既然发出，其顺逆有三类：有时令的顺逆，春夏阳气生发，疮疹为顺；秋冬阳气伏藏，疮疹为逆。有虚实的顺逆，如大便闭塞但能进食的，是为实、为顺；如二便通利但不能进食的，是为虚、为逆。有出入的顺逆，疮疹发出为顺，倒靥（痘疮回缩凹陷）陷伏的为逆，这大概就是这样。然而凡是先见疹子而夹杂发出像水痘一样的，定是正痘，因为疹子耗去了营血，所以白色似水痘，但只要发散疹子并继以滋养营血，那么疹子消散而痘疮自然形成，不可认为是水痘，因为疹子从不夹杂水痘的。
Yang Dou (pox-like rash resembling smallpox) is like brothers and sisters in one family; if there are several younger sisters, or if an elder brother contracts smallpox and it spreads to the younger brother, resulting in only a few spots appearing on his body, this is not his own genuine smallpox, but what is referred to as "Yang Dou." If pox lesions appear first at the "biao" (superficial level or specific peripheral sites), this is transmitted from the internal meridian positions, and it cannot be viewed in the same light as those acquired through contact transmission. It is erroneous for people to regard all such cases as Yang Dou. When an elder brother infects a younger brother, an uncle infects a nephew, an elder sister infects a younger sister, or a male infects a female, the originator of the infection possesses righteous qi that is not deviant; conversely, it is a "ni" (reverse/abnormal) pattern. Can one fail to distinguish between favorable and reverse patterns of Yang Dou?
Generally, it is auspicious if sores and rashes manifest in only one type. Even if mixed forms occur, they require detailed analysis. For instance, if pustules appear first followed by maculopapular rashes, this indicates the generating relationship between the Spleen and Lung, which is a favorable ("shun") pattern. If rashes appear first followed by macules/purpura, this indicates the generating relationship between the Heart and Spleen, which is also favorable. If vesicles appear first followed by rashes, this indicates the Liver overcoming the Spleen, which is an unfavorable ("ni") pattern. If pustules appear first followed by macules/purpura, this indicates the Heart overcoming the Lung, which is unfavorable. If pustules appear first followed by vesicles, and the quantity is small, it signifies that Metal and Wood are both obtained, making it difficult to be fatal, which is favorable. If the quantity is large, it signifies Metal overcoming Wood, or Wood exploiting the decline of Metal, which is unfavorable. If vesicles appear first followed by macules/purpura, and the quantity is large, it signifies Fire exploiting the decline of Wood, which is unfavorable. If the quantity is small, it signifies the child being weak while the mother is prosperous, which is favorable. Manifesting pustules in Spring, black depression in Summer, macules/purpura in Autumn, and rashes in Winter are all unfavorable patterns. However, once sores and rashes have erupted, their favorable or unfavorable nature can be categorized into three types: temporal favorable/unfavorable, where favorable conditions exist in Spring and Summer due to the rising of Yang Qi, while unfavorable conditions prevail in Autumn and Winter due to the hiding of Yang Qi; deficiency-excess favorable/unfavorable, where constipation with ability to eat indicates Excess and Favorable, whereas free bowel movements and inability to eat indicate Deficiency and Unfavorable; and exit/entry favorable/unfavorable, where the eruption of sores and rashes is Favorable, while involution (inward collapse) and depression are Unfavorable. This is a brief overview. Furthermore, if rashes appear first and are accompanied by eruptions resembling chickenpox, it is definitely genuine smallpox. Because the rashes consume Ying Blood (nutritive blood), the color appears white like chickenpox. However, by dispersing the rashes and subsequently nourishing the Ying Blood, the rashes will dissipate and the smallpox will form naturally. One must not mistake them for chickenpox, as rashes never accompany chickenpox.