洗有荡涤之功。涤洗则气血自然舒畅，其毒易于溃腐，而无壅滞也。凡肿在四肢者，
渍之；在腰腹脊背者，淋之；在下部者，浴之，俱以布帛或棉蘸洗，稍温即易，轻者日
洗一次，重者日夜洗二次，每日洗之，不可间断。凡洗时，冬月要猛火以逼寒气，夏月
要明窗以避风凉。若不慎此，轻则有妨收口，重则恐变纯阴。夫洗药不一，如初肿与将溃
者，俱用葱归 肿汤烫洗。如阴证不起者，俱用艾茸汤敷法。如溃后，俱用猪蹄汤烫洗。用
猪蹄汤者，以助肉之气而逐腐也。此涤洗之法，乃疡科之要药也。
葱归 肿汤 此汤治痈疽疮疡，初肿将溃之时，用此汤洗之，以疮内热痒为度。
独活（三钱） 白芷（三钱） 葱头（七个） 当归（三钱） 甘草（三钱）
上五味，以水三大碗，煎至汤醇，滤去渣。以绢帛蘸汤热洗，如温再易之。
【方歌】葱归 肿洗诸毒，初起将溃用之宜，洗至热痒斯为度，独芷葱归甘草俱。
艾茸敷法 此膏治阴疮黑陷而不痛者，用之为良。以知痛则生，不知痛出紫血者死，
然必内服大补回阳之剂以助之。
硫黄（五钱） 雄黄（五钱） 艾茸（一斤）
上以硫、雄二味为末，同艾入水煎半日，水将干，取艾出，捣烂，温敷患处。再煎再
易，十余次为度。
【方歌】艾茸敷法治阴疮，黑陷不痛用之良，石硫雄黄同艾煮，捣成膏敷定能康。
猪蹄汤 此汤治痈疽、诸毒流脓者，熬好洗之，以助肉气，消肿散风，脱腐止痛，去
恶肉，活死肌，润疮口。如腐尽者，不必用之，当以米泔水热洗之，令疮洁净。不可过
洗，过洗则伤水，皮肤破烂，难生肌肉敛口矣。
黄芩 甘草 当归 赤芍 白芷 蜂房 羌活（各等分）
上七味，共为粗末，看证之大小，定药之多少。先将 猪前蹄一只，用水六碗，煮
蹄软为度，将汁滤清，吹去汁上油花，即用粗药末一两，投于汁中；再用微火煎十数沸，
滤去渣，候汤微温，即用方盘一个，靠身于疮下放定，随用软绢蘸汤淋洗疮上，并入孔
内，轻手捺尽内脓，庶败腐宿脓，随汤而出，以净为度；再以软帛叠七八重，蘸汤勿令大
干，覆于疮上，两手轻按片时，帛温再换，如此再按四五次，可以流通血气，解毒止痛去
瘀也。洗讫用绢帛挹干，即随证以应用之药贴之。
【方歌】猪蹄汤治痈疽毒，已溃流脓用此方，消肿散风能止痛，芩甘归芍芷蜂羌。
洗涤具有荡涤清除的功效。通过涤洗，气血自然会通畅舒畅，疮毒容易溃烂腐化，而不会发生壅滞阻塞。凡是肿胀在四肢的，用浸泡法；在腰腹脊背的，用淋洗法；在下部的，用洗浴法，都用布帛或棉蘸取药液进行清洗，稍凉就更换，病情轻的每天洗一次，病情重的早晚各洗一次，每天都要洗，不可间断。凡是在清洗时，冬季要用猛火来驱逼寒气，夏季要在明亮的窗边以避开风凉。如果不谨慎注意这些，轻则妨碍伤口愈合，重则恐怕转变为纯阴证。至于洗涤的药物不一，如初起肿胀与将要溃破的，都用葱归消肿汤烫洗。如果是阴证不起发的，都用艾茸敷法。如果已经溃破后，都用猪蹄汤烫洗。使用猪蹄汤的原因，是为了助长肌肉生长的气机并驱逐腐肉。这种涤洗的方法，是外科的重要疗法。
葱归消肿汤：此汤治疗痈疽疮疡，在初起肿胀将要溃破的时候，用此汤清洗，以疮内感到热痒为限度。
独活（三钱） 白芷（三钱） 葱头（七个） 当归（三钱） 甘草（三钱）
以上五味药，用水三大碗，煎煮至汤汁醇厚，滤去药渣。用绢帛蘸取药汤热洗，凉了再更换。
【方歌】葱归消肿洗诸毒，初起将溃用之宜，洗至热痒斯为度，独芷葱归甘草俱。
艾茸敷法：此膏治疗阴疮黑陷且不疼痛的，用它效果良好。如果感觉疼痛说明能生肌，如果不感觉疼痛且流出紫黑色血液的则预后不良（死），但必须内服大补回阳的药物来辅助治疗。
硫黄（五钱） 雄黄（五钱） 艾茸（一斤）
以上将硫黄、雄黄两味药研为粉末，同艾草一起入水煎煮半天，水快干时，取出艾草，捣烂，温热敷于患处。再次煎煮再次更换，十几次为止。
【方歌】艾茸敷法治阴疮，黑陷不痛用之良，石硫雄黄同艾煮，捣成膏敷定能康。
猪蹄汤：此汤治疗痈疽、各种毒邪流脓的情况，熬好后清洗，以助长肌肉之气，消肿散风，脱除腐肉止痛，去除恶肉，活化死肌，润泽疮口。如果腐肉已尽，不必再用，应当用米泔水热洗，使疮面洁净。不可过度清洗，过度清洗则会损伤水分，导致皮肤破烂，难以生肌肉收敛伤口。
黄芩 甘草 当归 赤芍 白芷 蜂房 羌活（各等分）
以上七味药，共研为粗末，根据病症的大小，确定药物的多少。先将一只猪前蹄，用六碗水煮至蹄软为度，将汁液滤清，吹去汁上面的油花，就用粗药末一两，投入汁液中；再用微火煎煮十几滚，滤去药渣，等候药汤微温，就用方盘一个，靠近身体放在疮下固定好，随即用软绢蘸药汤淋洗疮上，并灌入孔内，轻手按压排尽内部脓液，这样败腐宿脓，随着药汤排出，以干净为限度；再用软帛折叠七八层，蘸药汤不要让它太干，覆盖在疮上，两手轻按片刻，帛凉了再换，如此再按压四五次，可以流通血气，解毒止痛去瘀。洗完后用绢帛擦干，随即根据证候贴上应用的药物。
【方歌】猪蹄汤治痈疽毒，已溃流脓用此方，消肿散风能止痛，芩甘归芍芷蜂羌。
Washing possesses the efficacy of scouring and cleansing. Through washing, Qi and Blood will naturally flow smoothly; toxins will easily undergo suppuration and putrefaction, without causing stagnation or obstruction. For swellings located in the four limbs, soaking (Zi) is used; for those on the waist, abdomen, spine, and back, pouring/lavaging (Lin) is used; for those in the lower parts, bathing (Yu) is used. All methods involve dipping cloth or cotton into the medicinal liquid for washing. The material should be replaced when it becomes slightly cool. For mild cases, wash once daily; for severe cases, wash twice daily (morning and night). Daily washing must not be interrupted. During washing, in winter, strong fire should be used to drive away cold qi; in summer, one should wash near a bright window to avoid wind and chill. If these precautions are not observed, mild cases may hinder wound healing, while severe cases may transform into Pure Yin syndromes. Regarding the medicinal liquids for washing, they vary: for initial swelling and impending ulceration, Cong Gui Xiao Zhong Tang (Scallion and Angelica Swelling-Reducing Decoction) is used for hot washing. For Yin syndromes that fail to rise or suppurate, Ai Rong Fu Fa (Mugwort Floss Application Method) is used. After ulceration has occurred, Zhu Ti Tang (Pig Trotter Decoction) is used for hot washing. Zhu Ti Tang is employed to assist the Qi of flesh regeneration and expel putrid tissue. This method of washing and cleansing is an essential therapy in Surgery (Yang Ke).
Cong Gui Xiao Zhong Tang (Scallion and Angelica Swelling-Reducing Decoction): This decoction treats carbuncles, ulcers, and sores during the stage of initial swelling and impending ulceration. It is used for washing until a sensation of heat and itching arises within the sore.
Du Huo (San Qian / 3 qian), Bai Zhi (San Qian / 3 qian), Cong Tou (Seven heads), Dang Gui (San Qian / 3 qian), Gan Cao (San Qian / 3 qian).
Take the above five herbs, add three large bowls of water, and decoct until the liquid is rich and concentrated. Filter out the dregs. Dip silk fabric into the hot decoction for washing; replace with fresh warm liquid as it cools.
[Prescription Verse] Scallion and Angelica Washing for Various Toxins, Suitable for Initial Swelling Impending Ulceration, Wash Until Heat and Itching Arise as the Limit, Du Huo, Bai Zhi, Scallion, Angelica, and Licorice Combined.
Ai Rong Fu Fa (Mugwort Floss Application Method): This paste is effective for treating Yin sores that are black, depressed, and painless. Its use is beneficial. If pain is felt, it indicates potential for healing; if there is no pain and purple blood is discharged, the prognosis is poor (fatal). However, internal administration of major tonifying and Yang-restoring formulas is necessary to support this treatment.
Liu Huang (Wu Qian / 5 qian), Xiong Huang (Wu Qian / 5 qian), Ai Rong (Yi Jin / 1 jin).
Grind Liu Huang and Xiong Huang into powder. Mix with Ai Rong and decoct in water for half a day. When the water is nearly dry, remove the Ai Rong, pound it into a pulp, and apply warm to the affected area. Re-decoct and reapply; repeat more than ten times as a course.
[Prescription Verse] Mugwort Floss Application Treats Yin Sores, Effective for Black Depressed Painless Lesions, Realgar and Sulfur Boiled with Mugwort, Pounded into Paste for Certain Recovery.
Zhu Ti Tang (Pig Trotter Decoction): This decoction treats carbuncles, ulcers, and various toxic conditions with pus discharge. After proper preparation, it is used for washing to assist Qi of flesh generation, reduce swelling, disperse wind, relieve pain by removing putrid tissue, eliminate foul flesh, revitalize necrotic muscle, and moisten the wound edges. If the putrid tissue has completely cleared, this decoction is unnecessary; instead, rice-washing water (Mi Gan Shui) should be used for hot washing to keep the wound clean. Do not wash excessively; excessive washing damages fluids, causes skin breakdown, and hinders muscle regeneration and wound closure.
Huang Qin, Gan Cao, Dang Gui, Chi Shao, Bai Zhi, Feng Fang, Qiang Huo (Equal parts).
Grind the above seven herbs into coarse powder. Determine the quantity of herbs based on the size of the lesion. First, take one pig foretrotter, boil in six bowls of water until soft. Strain the broth, clear it, and blow off the oil film from the surface. Add one liang of the coarse herb powder to the broth. Simmer over low heat for about ten boils. Filter out the dregs. Wait until the liquid is slightly warm. Place a square basin close to the body beneath the sore. Use soft silk to dip into the liquid and lavage the sore, pouring it into any cavities. Gently press to drain all internal pus, allowing foul and old pus to exit with the liquid, stopping when clean. Fold soft cloth seven or eight layers, dip in the liquid (keeping it from drying out), cover the sore, and gently press with both hands for a moment. Replace the cloth when it cools. Repeat pressing four or five times to promote Qi and Blood circulation, detoxify, relieve pain, and resolve stasis. After washing, dry with silk, then apply appropriate topical medications according to the syndrome.
[Prescription Verse] Pig Trotter Decoction Treats Carbuncles and Toxins, Used for Ulcerated Pus Discharge, Reduces Swelling, Disperses Wind, Relieves Pain, Huang Qin, Gan Cao, Dang Gui, Chi Shao, Bai Zhi, Honeycomb, Qiang Huo.