肌肉者，脾胃所主。收敛者，血气所关。苟使脾胃强，血气旺，则昨腐今生，朝脓夕敛
，何致迁延岁月，臭烂起肛，受苦万状。故曰∶初肿宜消其壅滞之渐，既溃宜托其恶毒之余。毒尽
宜敛，敛之法，但当大壮血气，纯补脾胃，不可泛敷生肌之药。盖毒盛自溃，毒尽自敛，如
水到渠成，不容矫强，以图速效。若余毒未尽，妄敷生肌药，阻盖毒瓦斯，反致延边腐臭，为
害非浅。果其痛失肿平，色转红活，而内补外敷，不日可敛矣。学人审之。
诸痛皆由气血瘀滞不通而致。凡寒热虚实、脓瘀风气，皆能为痛，不可不为之辨。夫色
赤痛者热也。色白酸痛者寒也。不胀不闷揉按暂安者虚也。又胀又闷畏人挨按者实也。痛如筋
牵、鸡啄，恶寒恶热者脓也。痛如肉拗、气抽、微胀者瘀也。痛而走注者风也。痛而刺胀者
气也。诸痛如此，而止痛之法，要在临病制宜。热毒之痛，以寒凉折其热，而痛自息。寒邪
之痛，以温热和其寒，而痛自除。因虚而痛者补其虚，因实而痛者泻其实，因燥而痛者润之
，因塞而痛者通之，因脓血闭郁者开之，因恶肉浸溃者化之，因阴阳不和者调之，因经络秘
涩者利之。随机应变，方为上上治法也。
痒虽属风，亦各有因。风初起作痒者，风热相搏，搔甚即痛是也。溃后作痒者，脓沤冒
风，突起颗瘩是也。将敛作痒者，因初时肌肉结滞，气血不通，至此气血渐和助养新肉，痒若虫
行是也。他如皮肤搔痒，由血燥而风生，疥癣延绵，属风淫而虫蚀。证有不同，治有微别，
勿视为一类也。
肌肉由脾胃所主管。收敛（疮口愈合）与血气密切相关。如果能使脾胃强健，血气旺盛，那么昨天腐烂的组织今天就能新生，早晨化脓晚上就能愈合，怎么会导致病程拖延岁月，患处臭烂甚至脱肛，遭受万般痛苦呢？所以说：初起肿胀时，适宜消除其壅滞的苗头；溃破后，适宜托出残留的恶毒之邪。毒邪排尽后宜进行收敛，收敛的方法，应当大力补益血气，纯粹补养脾胃，不可随意外敷生肌药物。因为毒邪炽盛时自然会溃破，毒邪排尽后自然会收敛，就像水到渠成一样，不容许矫揉造作去追求速效。如果余毒未尽，就胡乱外敷生肌药，会阻碍覆盖毒邪之气，反而导致病变蔓延、腐臭，造成的危害非常深重。果然等到疼痛消失、肿胀平复，患处颜色转为红润鲜活，此时内服补益药并配合外敷药，不久即可愈合。学习中医的人务必审慎对待。
各种疼痛都是由气血瘀滞不通所致。凡是寒证、热证、虚证、实证，以及脓液、瘀血、风邪等，都能引起疼痛，不能不进行辨别。患处色红且痛的属于热证。色白且酸痛的是寒证。不胀不闷，揉按后暂时缓解的是虚证。既胀又闷，害怕被人触碰按压的是实证。疼痛如筋脉牵引、像鸡啄米一样，怕冷又怕热的是脓证。疼痛如肌肉撕裂、气息抽掣、轻微肿胀的是瘀血证。疼痛游走不定的是风邪证。疼痛伴有刺痛和胀感的是气滞证。各种疼痛的情况如此，而止痛的方法，关键在于根据具体病情灵活制定。热毒引起的疼痛，用寒凉药物折损其热势，疼痛自然停止。寒邪引起的疼痛，用温热药物调和其寒气，疼痛自然消除。因虚而痛的要补其虚，因实而痛的要泻其实，因燥而痛的要滋润它，因堵塞而痛的要疏通它，因脓血闭郁的要开泄它，因恶肉浸渍溃烂的要化解它，因阴阳不和的要调和它，因经络闭塞涩滞的要通利它。随机应变，才是上等的治疗方法。
瘙痒虽然归属于风邪，但也各有成因。风邪初起引起的瘙痒，是风热相互搏结，抓挠严重时就会疼痛。溃破后出现的瘙痒，是因为脓液浸泡、冒受风邪，突起颗粒疙瘩。即将愈合时的瘙痒，是因为起初肌肉结滞，气血不通，到了这时气血逐渐调和以助养新肉，感觉像虫子在皮肤下爬行。其他的如皮肤瘙痒，是由血燥而生风；疥癣绵延不断，属于风邪淫溢而被虫蚀。证候有所不同，治疗也有细微差别，不要把它们视为同一类疾病。
Muscles are governed by the Spleen and Stomach. Wound contraction (healing of ulcers) is related to Blood and Qi. If the Spleen and Stomach are strengthened and Blood and Qi are abundant, then yesterday's necrotic tissue will regenerate today, and pus formed in the morning will heal by evening. How could it lead to a prolonged course lasting years, with foul decay and even rectal prolapse, causing immense suffering? Therefore, it is said: In the initial swelling stage, one should aim to dissipate stagnation; after ulceration, one should support the expulsion of residual toxic pathogens. Once toxins are exhausted, contraction should be promoted. The method for contraction lies primarily in vigorously tonifying Blood and Qi and purely nourishing the Spleen and Stomach, rather than indiscriminately applying topical flesh-regenerating medicines. When toxin load is high, ulceration occurs naturally; when toxins are cleared, healing follows spontaneously, like water filling a channel. One must not force results or seek rapid efficacy through artificial means. If residual toxins remain and one recklessly applies flesh-regenerating drugs, it blocks the dispersion of toxic vapors, potentially causing the lesion to spread and become putrid, resulting in severe harm. Only when pain subsides, swelling flattens, and the color turns ruddy and vibrant should internal tonification and external application be used, leading to healing within days. Students of medicine must exercise caution.
All pains arise from the stasis and obstruction of Qi and Blood. Cold, heat, deficiency, excess, as well as pus, blood stasis, and wind pathogens can all cause pain, and these must be differentiated. Redness accompanied by pain indicates Heat. Whiteness accompanied by soreness indicates Cold. Absence of distension or fullness, with temporary relief upon massage, indicates Deficiency. Distension combined with fullness and aversion to touch indicates Excess. Pain resembling tendon traction or chicken-pecking, accompanied by aversion to both cold and heat, indicates Pus. Pain resembling muscle tearing or qi drawing, with slight distension, indicates Blood Stasis. Migratory pain indicates Wind. Pain characterized by stabbing and distension indicates Qi Stagnation. Given such variations in pain, the method for relieving pain must be adapted to the specific case. For pain caused by Heat-Toxin, use cold-cooling herbs to subdue the heat, and the pain will cease. For pain caused by Cold pathogen, use warm-heating methods to harmonize the cold, and the pain will resolve. For pain due to deficiency, tonify the deficiency; for pain due to excess, purge the excess; for pain due to dryness, moisten it; for pain due to obstruction, unblock it; for pain due to closure of pus and blood, open it; for pain due to foul flesh erosion, resolve it; for pain due to disharmony of Yin and Yang, regulate it; for pain due to blocked and stagnant meridians, promote flow. Adapting to circumstances is the highest therapeutic principle.
Itching, although attributed to Wind, has various causes. Itching at the initial onset of Wind is due to the struggle between Wind and Heat, where severe scratching leads to pain. Itching after ulceration is caused by pus maceration and exposure to wind, presenting as raised papules. Itching during the impending healing phase occurs because initial muscle stasis prevented Qi and Blood flow; now, as Qi and Blood gradually harmonize to nourish new tissue, the sensation resembles insects crawling under the skin. Other forms, such as skin itching, stem from Blood dryness generating Wind; persistent tinea and scabies belong to excessive Wind infestation and worm erosion. Although syndromes differ, treatments have subtle distinctions, and they should not be treated as a single category.