三法者,国中末也。初治之道,法当猛峻,所谓用药势疾利猛峻也。缘病得之新暴,感之轻,
得之重,当以疾利猛峻之药急去之。中治之道,法当宽猛相济,为病得之非新非久,当以缓疾得
中,养正去邪相兼济而治之。养正去邪者,假令如见邪气多正气少,宜以去邪药多正气药少,凡
加减之法如此,更以临时对证消息增减用药,仍根据时令行之,更加针灸,其效甚速。末治之道,
法当宽缓。宽缓者,谓药性平善,广服无毒,惟能安中养血气。盖为病久,邪气潜伏,欲泻而正
气微,治故以善药养正而邪自去,更加针灸,其效必速。
五治者,和取从折属也。一治曰和,假令小热之病,当以凉药和之,和之不已,次用取。二
治曰取,为热势稍大,当以寒药取之,取之不已,次用从。三治曰从,为势既甚,当以温药从之,
为药气温也,味随所为。或以寒因热用,味通所用,或寒以温用,或以发汗之,不已,又再折。
四治曰折,为病势极甚,当以逆制之,制之不已,当以下夺之,下夺不已,又用属。五治曰属,
为求其属以衰之,缘身热陷在骨髓,无法可出,针
药所不能及,故求其属以衰之,缘属之法同声相应,同气相求。经曰∶陷下者衰之。夫衰热之法,
所云火衰于戌,金衰于辰之类是也。或有不已,当广其法而治之。
These three methods represent the initial, intermediate, and terminal stages of treatment. The principle of initial treatment dictates that medications should be potent and drastic, meaning the therapeutic momentum must be swift, sharp, fierce, and severe. Since the disease is newly acquired and sudden, with a light pathogenic invasion but heavy clinical presentation, one should employ swift, sharp, fierce, and severe drugs to rapidly eliminate the pathogen. The principle of intermediate treatment requires a balance between mildness and severity. As the disease is neither newly acquired nor chronic, the treatment should be moderate in pace, simultaneously supporting healthy Qi (vital energy) and eliminating pathogens. Specifically, if pathogenic factors are abundant while healthy Qi is deficient, more pathogen-eliminating herbs should be used than healthy Qi-nourishing ones. This approach applies to all modifications of prescriptions. Furthermore, medication dosage should be adjusted according to the specific syndrome at hand, aligned with seasonal climatic conditions, and combined with acupuncture for rapid efficacy. The principle of terminal treatment advocates for mild and gentle approaches. "Mild and gentle" refers to herbs that are balanced and benign, safe for long-term use without toxicity, primarily serving to stabilize the Middle Jiao (central digestive system) and nourish Qi and Blood. Because the disease has persisted for a long time, pathogens are latent, and attempting to purge them would further weaken already deficient healthy Qi. Therefore, treatment involves using benign herbs to support healthy Qi, after which pathogens will naturally dissipate. Combined with acupuncture, this yields certain and rapid results.
The five treatments encompass principles of harmonizing, following, countering, and relating. The first treatment is "Harmonizing." For minor heat conditions, cool-natured herbs should be used to harmonize the body; if harmonization fails, proceed to "Taking/Purging." The second treatment is "Taking/Purging." If the heat intensity increases moderately, cold-natured herbs should be used to purge the heat; if purging fails, proceed to "Following." The third treatment is "Following." When the condition becomes severe, warm-natured herbs should be used to follow the pathogenic trend, as the drug's nature is warm, and its flavor adapts to the therapeutic goal. This may involve using cold herbs in hot conditions (counter-assistance), where the flavor penetrates the targeted area, or using cold herbs in warm conditions, or employing diaphoresis (sweating). If ineffective, proceed to "Countering." The fourth treatment is "Countering." When the pathological momentum is extreme, one must counteract it directly. If direct counteraction fails, use downward purgation to drain excess. If purgation fails, proceed to "Relating/Attributing." The fifth treatment is "Relating/Attributing," which seeks the root cause to diminish the pathology. When fever sinks into the marrow, inaccessible to standard interventions, one seeks the root to reduce it, based on the principle that like sounds resonate and like energies attract. The Classics state: "For sinking conditions, apply reduction." Methods for reducing heat include concepts such as Fire declining at Xu hour and Metal declining at Chen hour. If these methods remain ineffective, a broader range of techniques should be employed.