娠妇有病，安胎为先，所谓有病以末治之也。独至于疫，则又不然，何也？母之于胎，一气相连，母病即胎病，
母
安则胎安。夫胎赖血以养，母病热疫之症，热即毒火也，毒火蕴于血中，是母之血亦为毒血矣。毒血尚可养胎乎？不急
有以治其血中之毒，而拘拘以安胎为事，母先危矣，胎能安乎？人亦知胎热则动，胎凉则安。母病毒火最重之症，胎自
热矣。极力清解凉血，使母病一解，而不必安自无不安矣。至于瘥后以及病中适逢经来，当以类推。若以产后、经期，
药禁寒凉，则误人性命，只数日间耳！急则治其标者，此之谓也。
松而且浮，洒于皮面，或红，或紫，或赤，或黑，此毒之外现者，即照本方治之，虽有恶症，百无一失。
疹出紧束有根，如从肉里钻出，其色青紫，宛如浮萍之背，多见于胸背。此胃热将烂之色，即宜大清
胃热，兼凉其血，务使松活色退，方可挽回。稍存疑惧，即不能救。
血之体本红，血得其畅，则红而活，荣而润，敷布洋溢，是疹之佳境也。
孕妇患病，通常以安胎为首要任务，这就是所谓的“有病则治其标（此处指针对病因治疗，而非单纯固护胎儿）”。但唯独遇到瘟疫时，情况却并非如此，为什么呢？母亲与胎儿通过一气相连，母亲生病即意味着胎儿也会受累，母亲平安则胎儿平安。胎儿依靠血液来滋养，如果母亲患有热性瘟疫病症，热即是毒火，毒火蕴结在血液中，那么母亲的血液也就变成了毒血了。毒血还能用来滋养胎儿吗？如果不急于清除血液中的毒素，反而拘泥于安胎这一事务，母亲先陷入危险境地，胎儿又能如何保全呢？人们也知道，胎热则动，胎凉则安。母亲感染了最严重的病毒火之症，胎儿自然也会受热。因此，必须极力进行清热、解毒、凉血的治疗，使母亲的病症得以解除，而不必刻意去安胎，胎儿自然也就安定了。至于病愈之后，以及患病期间恰逢月经来潮的情况，应当以此类推。如果因为产后或经期，就禁忌使用寒凉药物，那就会误人性命，只需短短数日！所谓“急则治其标”，说的就是这种情况。
疹色松浮，散布于皮肤表面，颜色有的红，有的紫，有的赤，有的黑，这是毒素外现的表现，此时即按照本方进行治疗，即使症状凶险，也百无一失。
如果疹子出得紧束且有根，好像从肉里钻出来一样，颜色青紫，宛如浮萍的背面，多见于胸背部。这是胃热将要导致肌肤腐烂的颜色，此时应当大清胃热，兼以凉血，务必使疹子变得松活、颜色消退，才可以挽回生机。如果稍存疑虑恐惧，就不能救治了。
血液的本色是红的，血液运行通畅，则呈现红色且鲜活、红润光泽，布满全身，这是疹子的佳境。
淡红色有美有疵。颜色淡而润泽，这是上等的颜色；如果颜色淡但不荣润，或者娇嫩艳丽、干燥滞涩，这是血热极盛的表现。
深红色，比淡红稍重一些，也是血热的征象。一经凉血治疗即可转为淡红色。
颜色鲜艳如胭脂，这是血热到了极点的表现，比深红色更加凶险。必须大剂量使用凉血药物，才能先转为深红色，再进一步凉血，才会变为淡红色。
When a pregnant woman falls ill, securing the fetus is usually the priority, which is referred to as "treating the branch when there is disease" (here implying treating the underlying cause rather than merely protecting the fetus). However, in the case of epidemic plague, this is not so. Why? The mother and the fetus are connected by one Qi; if the mother is sick, the fetus is affected, and if the mother is safe, the fetus is safe. The fetus relies on blood for nourishment. If the mother suffers from heat-type epidemic symptoms, heat is toxic fire. When toxic fire accumulates in the blood, the mother's blood becomes toxic blood. Can toxic blood still nourish the fetus? If one does not urgently clear the toxin from the blood but instead rigidly focuses on securing the fetus, the mother will be endangered first, and how can the fetus be saved? It is known that fetal heat causes movement, while fetal coolness ensures stability. If the mother contracts the most severe toxic fire syndrome, the fetus will naturally become heated. Therefore, one must vigorously employ clearing heat, resolving toxicity, and cooling blood therapies. Once the mother's illness is resolved, there is no need to deliberately secure the fetus, and the fetus will naturally be stable. This logic applies analogously to the post-recovery period or if menstruation occurs during the illness. If one prohibits the use of cold-natured medicines due to postpartum status or menstruation, it will cost lives within just a few days! This exemplifies the principle of "treating the branch in acute situations."
If the rash is loose and floating, spreading over the skin surface, with colors varying from red, purple, crimson, to black, this indicates the external manifestation of toxins. In such cases, treat according to the primary formula; even if the symptoms are malignant, there will be little failure.
If the rash emerges tightly bound with roots, appearing as if drilling out from the flesh, with a cyan-purple color resembling the back of a duckweed, mostly seen on the chest and back, this is the color indicating stomach heat leading to tissue decay. One should immediately strongly clear stomach heat and simultaneously cool the blood, ensuring the rash becomes loose and flexible and the color fades, before recovery can be achieved. Any hesitation or fear will render the condition incurable.
The natural body of blood is red. When blood flows smoothly, it appears red, vibrant, lustrous, and evenly distributed, representing an auspicious state of the rash.
Pale red has both favorable and unfavorable aspects. A pale and moist color is considered superior; however, if it is pale but lacks luster, or is tenderly bright yet dry and stagnant, it indicates extreme blood heat.
Deep red is slightly more severe than pale red and also signifies blood heat. It will turn pale red once blood-cooling measures are applied.
A color bright like rouge indicates extreme blood heat, which is worse than deep red. Large doses of blood-cooling herbs must be used to first transition the color to deep red, and further cooling will then change it to pale red.