痧与杂症往往相兼而发，俱当首重治痧，兼医杂症，盖痧症急而杂症缓也。惟胎前产后有痧当并重处治，盖胎前宜
补，痧症宜消；产后宜温，痧症宜凉也，故用药治痧，必须斟酌。
肌肤痧，用油盐刮之，则痧毒不内攻。血肉痧，看青紫筋刺之，则痧毒有所泄。肠、胃、脾、肝、肾，三阴经络痧，
治之须辨经络脏腑，在气在血，则痧之攻内者，可消、可散、可驱，而绝其病根也。
痧忌热汤、热酒、粥汤、米食诸物。盖饮热汤、热酒、粥汤则轻者必重，重者立毙。吃米食诸物，恐结成痧块，日
久变出奇疾，甚难救疗。如有幸而食消，不殒命者，不可以此为例也。
痧症略松，胸中觉饿，设或骤进饮食，即复痧胀，立可变重，是必忍耐一二日为则，乃可万全。
痧有心胸高起如馒HT 者，不治。背心一点痛者，死。角弓反张者，死。腰肾一点痛者，死。心胸左右有一点痛者，
不治。胁肋痛者，不治。四肢肿痛者，难治。鼻如烟煤者，死。舌卷囊缩者，死。环口黧黑者，死。头汗如珠，喘而不
休者，死。昏迷不醒，放痧不出，服药不应者，死。痧块大痛，服药不应者，死。
诸凡百病，势极伤人。然亦有未即临危，尚可绵延时日，而忽然变病，遂致倾危不治者，何也？盖百病之中，有或
因病，而感夏月暑热时行之气，有或床第不洁，秽恶冲人，而兼之平时伏毒深藏，一时痧症均可乘隙窃发。所贵医者识
窍，先治其痧，后理其病。所谓急则治其标，缓则治其本者，此类是也。
Sha (Toxic Heat Pathogen) and miscellaneous diseases often occur simultaneously. In treatment, priority must be given to treating Sha, while concurrently addressing the miscellaneous disease, because Sha is acute while miscellaneous diseases are chronic. Only during pregnancy and postpartum should Sha be treated with equal emphasis alongside other conditions, because pregnancy requires tonification while Sha requires resolution; postpartum requires warming while Sha requires cooling. Therefore, medication for Sha must be carefully considered.
For Sha on the skin and muscles, scraping with oil and salt prevents the Sha toxin from attacking inward. For Sha involving flesh and blood, observing cyanotic or purple veins and performing pricking therapy allows the Sha toxin to be drained. For Sha affecting the meridians of the intestines, stomach, spleen, liver, and kidneys (the Three Yin meridians), treatment must differentiate the meridian and Zang-Fu organs, distinguishing whether the pathogen is in the Qi level or Blood level. Thus, Sha attacking inward can be resolved, dispersed, or expelled, eliminating the root of the disease.
Sha is contraindicated with hot soup, hot wine, porridge, rice, and similar foods. Drinking hot liquids causes mild cases to worsen and severe cases to die immediately. Eating rice may cause Sha masses to form, which over time transform into bizarre diseases that are extremely difficult to treat. Even if one fortunately digests the food without dying, this cannot serve as a precedent.
When Sha symptoms slightly relax and hunger is felt in the chest, sudden intake of food will cause Sha distension to recur, potentially worsening the condition immediately. One must endure for one or two days as a rule to ensure complete safety.
Sha presenting with a chest protrusion like a steamed bun is incurable. Pain at a single point on the back indicates death. Opisthotonos (body bent backward like a bow) indicates death. Pain at a single point in the lower back/kidney region indicates death. Pain at a single point on either side of the chest is incurable. Hypochondriac pain is incurable. Swelling and pain in the four limbs are difficult to treat. A nose color resembling soot indicates death. Tongue retraction and testicular retraction indicate death. Blackening around the mouth indicates death. Head sweating like pearls with continuous panting indicates death. Coma with inability to awaken, failure to release Sha through pricking, and ineffectiveness of medication indicate death. Severe pain from Sha masses with ineffectiveness of medication indicates death.
All hundred diseases have momentum that severely harms the body. However, there are cases where danger does not immediately appear, allowing time to drag on, yet suddenly transforming into a critical, incurable state. Why? Among the hundred diseases, some contract the summer-heat epidemic qi due to illness; others are affected by foul odors from unclean bedding, combined with deep-seated latent toxins from daily life. Under these circumstances, Sha can opportunistically emerge. The value lies in the physician's insight: treat the Sha first, then manage the underlying disease. This exemplifies the principle of "treating the branch in acute conditions and the root in chronic conditions."