治一切痈疽恶疮。
凡人初觉发背欲结未结，亦肿 痛，以湿纸覆其上，先干处即痈头也。取独头大蒜
切片，安于头上，用艾灸之，三壮换一蒜片，痛者灸至不痛，不痛者灸至痛时方佳，
最要早觉早灸为上。若有十数头者，即用蒜研作饼，铺头上，聚艾于饼上烧之。若初发
赤肿一片，中间有粟米头子便用独蒜片，安于头上，着艾灸十四壮，或四十九壮，使毒
气外出则易愈。痈疽着灸胜于用药，三壮一易，百壮为率，有灸至八百壮者，约艾一
筛，初坏肉不痛，直灸至痛方止。至夜火 ，满皆高阜头孔百数，则毒外出，否则内
逼五脏而危矣。但头顶以上，切不可用，恐引气上，更生大祸也。《纲目》曰∶《精要》
谓头上发毒不得灸，此言过矣。头为诸阳所聚，艾炷宜小，壮数宜少，小者，如椒粒，
少者，三五壮而已。东垣灸，元好问，脑疽以大艾炷如两核许者，灸至百壮始觉痛而
止。由是推之，则头上发毒，灸之痛者，艾炷宜小，壮数宜少。若不痛者，艾炷大壮数多，亦无妨也。
一切痈疽将发，预期服之，能消肿逐毒，使毒瓦斯不内攻，效不具述。
大甘草有粉者二斤，捶碎，河水浸一宿，揉令浆汁浓，去渣，慢火熬成膏，每服
一二匙，无灰酒不拘时服。
一切痈疽发背恶毒，有死血阴毒在中则不痛，敷之则痛，有忧怒等气积而内攻则痛
不可忍，敷之则不痛；或热蕴在内，壮热手不可近，敷之即清凉；或气虚血冷，溃而不
敛，敷之即敛；七情内郁，不问虚实并效。
远志，米泔浸洗，去心，为细末，酒一盏，调药一钱，迟顷澄清饮之，以渣敷病处。
治疗各种痈疽和恶疮。
凡是人刚开始感觉背部发背（生于背部的痈肿）即将形成但尚未完全结聚时，会出现肿胀疼痛，用湿纸覆盖在患处，最先变干的地方就是脓头所在。取独头大蒜切成薄片，贴在脓头上，用艾条进行艾灸，每灸三壮更换一片蒜片，如果患处疼痛，就灸到不痛为止；如果不痛，就灸到有痛感时才最好，最重要的是尽早察觉并尽早施灸为上策。如果有十几个脓头的情况，就将大蒜捣碎做成饼状，铺在脓头上，将艾绒聚集在蒜饼上燃烧。如果是初起时红肿一片，中间有像粟米大小的脓头，就用独头蒜片贴在脓头上，用艾炷灸十四壮或四十九壮，使毒气向外发散则容易痊愈。对于痈疽，艾灸的效果优于用药，每灸三壮更换一次（指换药或换蒜），以一百壮为常规剂量，有的灸到八百壮，大约消耗一筛子的艾绒，起初腐坏的肉组织没有痛感，直接灸到有痛感才停止。到了晚上，火燎过后，整个患处都变成高起的孔洞多达百数，这样毒气就能向外排出，否则毒气内陷逼迫五脏就会危及生命。但是头顶以上部位，切不可使用此法，恐怕引动气机上逆，反而酿成大祸。《本草纲目》说：《外科精要》认为头上发毒不能艾灸，这种说法是错误的。头部是诸阳经汇聚之处，艾炷应该小，壮数应该少，小的如花椒粒大小，少的只需三五壮即可。李东垣曾给元好问治疗脑疽，使用大艾炷如两个核桃核那么大，灸到一百壮时才感觉到痛才停止。由此推断，如果是头上发毒，灸后感到疼痛的，艾炷宜小，壮数宜少；如果不痛，艾炷可以大一些，壮数多一些，也没有妨碍。
一切痈疽将要发作时，提前服用此方，能够消肿排毒，使毒邪不向内攻犯，疗效不胜枚举。
选用有粉质的甘草二斤，捶碎，用河水浸泡一夜，揉搓使其浆汁浓稠，滤去渣滓，用慢火熬制成膏状，每次服用一二匙，不限时间，用无灰酒送服。
治疗各种痈疽、发背及恶毒疮疡，如果有死血阴毒蕴结在中则不痛，敷药后则痛；如果有忧怒等情志积滞导致内攻则痛不可忍，敷药后则不痛；或者热邪蕴结在内，高热得手不可近，敷药后即感清凉；或者气虚血冷，溃烂后久不收口，敷药后即能收敛；七情内郁所致者，无论虚实均有效。
远志，用淘米水浸泡清洗，去掉心部，研成细末，用一盏酒调和一钱药粉，稍待片刻待其澄清后饮用，并将药渣敷在患处。
Treats all kinds of carbuncles, sores, and malignant ulcers.
When a person first feels the onset of a back carbuncle (a boil occurring on the back) that is about to form but has not yet fully consolidated, accompanied by swelling and pain, cover the affected area with wet paper; the place that dries out first indicates the head of the abscess. Take a single-clove garlic, slice it thinly, and apply it over the head of the abscess. Perform moxibustion using moxa cones. Replace the garlic slice after every three moxa cones (Zhuang). If the area is painful, continue moxibustion until the pain ceases; if it is not painful, continue until pain arises, which is considered optimal. The most crucial point is to detect it early and apply moxibustion as soon as possible. If there are ten or more heads, crush the garlic into a paste, spread it over the heads, and burn the gathered moxa on top of the garlic paste. If the initial presentation is a patch of redness and swelling with a millet-grain-sized head in the center, apply a slice of single-clove garlic over the head and perform moxibustion with fourteen or forty-nine moxa cones. This allows the toxic qi to exit outward, facilitating easier healing. For carbuncles and sores, moxibustion is superior to medication. Change the treatment every three moxa cones, with one hundred cones as the standard rate; some cases involve up to eight hundred cones, consuming approximately one sieve of moxa. Initially, the necrotic tissue may not be painful; continue direct moxibustion until pain is felt, then stop. By night, after the fire has passed, the entire area becomes elevated with hundreds of holes, allowing the toxin to exit outward. Otherwise, the toxin will press inward against the Zang organs, leading to critical danger. However, this method must strictly not be used above the vertex of the head, lest it draw Qi upward and cause greater disaster. *Bencao Gangmu* states: *Waike Jingyao* claims that toxic swellings on the head should not be moxibusted; this statement is incorrect. The head is the gathering place of all Yang meridians. Therefore, the moxa cone should be small, and the number of cones few—small like a peppercorn, and few, only three to five cones. Li Dongyuan treated Yuan Haowen for a brain carbuncle using large moxa cones the size of two walnut kernels, moxibusting until one hundred cones were applied before pain was felt, at which point he stopped. From this, we can deduce that for toxic swellings on the head, if pain occurs during moxibustion, the cone should be small and the number of cones few. If no pain occurs, larger cones and a greater number of cones are also acceptable without harm.
For any impending carbuncle or sore, taking this preparation in advance can reduce swelling and expel toxins, preventing the toxic pathogen from attacking internally. The efficacy is too numerous to recount.
Take two jin (approx. 1 kg) of licorice root (Gancao) that contains starch. Crush it, soak it in river water overnight, knead it until the juice becomes thick, filter out the dregs, and slowly simmer it into a paste. Take one or two spoons each time, administered at any time with non-fermented wine (Wuhui Jiu).
This treats all kinds of carbuncles, back sores, and malignant poisons. If stagnant blood and Yin-toxin reside within, there is no pain; applying this causes pain. If pain is caused by internal attack due to accumulated emotions such as worry and anger, making it unbearable, applying this stops the pain. If heat is trapped internally, causing high fever where the hand cannot bear to touch, applying this brings immediate coolness. If Qi deficiency and cold blood result in ulceration that fails to heal, applying this promotes closure. It is effective for internal stagnation of the Seven Emotions, regardless of excess or deficiency patterns.
Take Polygalae Radix (Yuanzhi), soak and wash it with rice water, remove the core, and grind it into a fine powder. Mix one qian of the medicine with one cup of wine. Wait for it to settle and clarify, then drink the liquid. Apply the dregs to the affected area.