〔子和〕 经曰∶寒疮流水，俗呼为冻疮。或经年不愈者，用野中净土晒干，以大蒜研
如泥，捏作饼子如大观钱浓薄，量疮口大小贴之，以艾火加于饼上灸之，不计壮数以泥
干为度。去干饼子再换湿饼子灸，不问多少，直至疮痂觉痛痒，是疮可治也。然后口含浆
水洗渍，用鸡翎二十茎缚作刷子，于疮上刷洗净。以此洗刷，不致肌肉损伤也，以软帛
拭干。用木香槟榔散敷之。如夏月医之更妙。
〔世〕 足跟红肿冻疮。 足跟（左足指面后跟赤白肉际骨下，刺入三分，弹针出血，可灸三七壮）
足跟冻疮溃破，用葱椒汤洗，刮去腐肉，用三棱针出血，将马屁勃入生牛骨髓，调和
敷之效。
〔禹锡〕 取腊月牡鼠死者一枚，油一大升，煎之使烂绞出渣，再煎成膏，涂冻疮及
拆破疮。
治冻疮，用茄根烧成灰，洗了，用雀儿脑髓涂之。
〔丹〕 治冻疮，用煎熟桐油，调密陀僧敷。
〔山〕 用五倍子，煎汤洗。
如神散（罗氏） 治冻疮皮烂，痛不可忍。用川大黄不拘多少为细末。新水调扫冻破疮上，
痛止立效。
〔子和〕 戴人女僮，足有冻疮。戴人令服舟车丸、浚川散大下之，遂愈。人或疑之？
戴人曰∶心火降则寒消，何疑之有。
雉脑膏 治冻疮久不瘥，年年发歇，先痒后痛，然后肿破出黄水及血出不止。
雄雉脑 （一枚，研烂） 黄腊（各等分） 清油（减半）
上同于慢火上熬成膏，去滓，入瓷器中盛。每用涂疮上。
柏叶膏 治冻疮，手足指欲坠及耳欲落。
柏叶（炙干为末，四两） 杏仁（去皮研，四十个） 头发（一拳大） 食盐（半两，研） 乳香（二钱
半，研） 黄蜡（一两） 油（一升）
上先煎油沸，次下前五味药，待发尽。再下黄蜡搅匀，瓷盒收。先以热小便洗疮，以
绵挹干，后以药涂。即以软帛裹，勿令寒气侵入。每日一换，如疮渐瘥，三四日一换。
橄榄散 治脚冻疮
上用橄榄核，烧灰存性、为末。入轻粉，油调涂。
一女年数岁，严寒上京，两足受冻不仁，用汤泡渍，至春十指俱烂，牵连未落。予用
托里之剂，助其阳气自溃脱，得保其生。此因寒邪遏绝，运气不至，又加热汤泡渍，故
死而不痛也。余尝见人之严寒而出，冻伤其耳，不知痛痒，若以手触之，其耳即落。当
以暖处良久，或热手熨之无恙。若以火烘汤泡，其耳即死，至春必溃脱落矣。北方寒气
损人若此，可不察之。
【张子和】《内经》说：寒疮流水，俗称冻疮。如果经年不愈的，取野外洁净的泥土晒干，用大蒜研成泥状，捏成饼子，厚度如大观通宝钱币的浓薄程度，根据疮口大小贴在上面，在饼上施以艾灸，不计灸壮数，直到泥土变干为止。去掉干掉的饼子，再换上湿饼子继续灸，不限次数，直到疮痂处感到痛痒，说明这疮可以治愈了。然后用口中含着的浆水清洗浸泡，用二十根鸡翎绑作刷子，在疮面上刷洗干净。这样洗刷，不会损伤肌肉，再用软布擦干。敷上木香槟榔散。如果在夏季治疗效果更好。
【世传方】足跟红肿型冻疮。足跟穴（位于左足指面后跟赤白肉际骨下，针刺三分深，弹针出血，可灸三七壮）
足跟冻疮溃破的，用葱椒汤清洗，刮去腐肉，用三棱针放血，将马屁勃（土茯苓）与生牛骨髓调和敷用，效果显著。
【禹锡】取腊月死去的公老鼠一只，油一大升，煎至老鼠烂熟，绞出药渣，再煎成膏，涂抹冻疮及破裂的疮口。
治疗冻疮，用茄根烧成灰，洗净后，用麻雀脑髓涂抹。
如神散（罗氏方） 治疗冻疮皮肤腐烂，疼痛难忍。用川大黄不拘多少研成细末。用新汲水调匀扫在冻破的疮上，疼痛立即停止，立见功效。
【张子和】戴人（张子和号）的女僮，脚上有冻疮。戴人让她服用舟车丸、浚川散进行强力泻下，于是痊愈。有人对此表示怀疑？戴人说：心火下降则寒气消除，有什么好怀疑的。
雉脑膏 治疗冻疮久治不愈，年年发作，先痒后痛，然后肿胀破裂流出黄水及血液不止。
雄雉脑（一枚，研烂） 黄腊（各等分） 清油（减半）
以上药物一起在慢火上熬成膏，滤去药渣，装入瓷器中储存。每次取适量涂于疮上。
柏叶膏 治疗冻疮，手足指头快要脱落以及耳朵快要掉下来的情况。
柏叶（炙干研末，四两） 杏仁（去皮研磨，四十个） 头发（一拳大） 食盐（半两，研细） 乳香（二钱半，研细） 黄蜡（一两） 油（一升）
先将油煎沸，其次放入前五味药，待药味散发出来后，再放入黄蜡搅拌均匀，收于瓷盒中。先用热小便清洗疮口，用绵蘸干，然后涂上药。随即用软布包裹，不要让寒气侵入。每日一换，如果疮渐好转，三四天换一次。
橄榄散 治疗脚部冻疮
取橄榄核，烧灰存性，研成末。加入轻粉，用油调匀涂抹。
有一个几岁大的女孩，严寒时节进京，双脚受冻麻木，用热水泡渍，到了春天十指全部烂掉，牵连未脱落。我用托里扶正的药剂，助其阳气自然溃脱，得以保全生命。这是因为寒邪遏制隔绝，运气不通达，又加上用热汤泡渍，所以虽然死亡（坏死）却不疼痛。我曾经见过有人在严寒中外出，冻伤了耳朵，不知痛痒，如果用手触碰，耳朵就会掉落。应当在温暖的地方停留很久，或者用热手熨烫才能无恙。如果用火烘烤或热汤泡渍，耳朵就会彻底坏死，到了春天必然溃烂脱落。北方的寒气对人损害如此之大，怎能不仔细考察呢？
[Hezi (Zhang Yuansu)] The *Classic of Internal Medicine* states: "Cold sores with flowing fluid," commonly known as frostbite. For those not healing after years, take pure soil from the wild, dry it in the sun, grind garlic into a paste, shape it into a cake with the thickness of a Daguan coin, and apply it to the wound according to its size. Apply moxibustion on top of the cake until the soil dries out. Remove the dried cake and replace it with a wet one for continued moxibustion, without limit, until the scab feels painful or itchy, indicating the wound is treatable. Then rinse and soak with saliva-water (water held in the mouth), using twenty chicken feathers bound together as a brush to gently scrub the wound clean. This method prevents damage to the muscle tissue. Dry with a soft cloth. Apply Muxiang Binglang San (Buckthorn and Areca Nut Powder). Treatment in summer is even more effective.
[Popular Prescription] Redness and swelling of the heel due to frostbite. He Gu point (located under the bone at the junction of red and white flesh behind the left foot's toes; puncture 3 cun, use flicking needle technique to bleed, can be moxibusted 21-27 times).
For ulcerated frostbite of the heel, wash with Cong Jiao Tang (Scallion and Pepper Decoction), scrape off necrotic tissue, bleed using a three-edged needle, then mix Mapibo (Smilax Glabra Rhizome) with raw bovine bone marrow and apply externally for efficacy.
[Yuxi] Take one male rat that died in the twelfth lunar month, add one sheng of oil, boil until the rat is thoroughly softened, strain out the residue, and boil again to form an ointment. Apply to frostbite and broken sores.
To treat frostbite, burn eggplant roots to ash, wash the area, and apply sparrow brain marrow.
[Danyang (Zhu Danxi)] To treat frostbite, use boiled tung oil mixed with Miduoseng (Litharge) for external application.
[Shan] Use Wubeizi (Galla Chinensis), decoct in water for washing.
Rushen San (Formula by Luo) Treats frostbite with skin erosion and unbearable pain. Use Chuan Dahuang (Rheum Palmatum Rhizome) in any amount, ground into fine powder. Mix with fresh water and sweep/apply onto the frostbitten, broken skin; pain stops immediately with striking effect.
[Hezi (Zhang Yuansu)] Dai Ren’s (Zhang Yuansu's courtesy name) female servant had frostbite on her feet. Dai Ren ordered her to take Zhouche Wan (Boat and Cart Pill) and Junchuan San (River Clearing Powder) for strong purgation, resulting in recovery. Some people doubted this? Dai Ren said: "When Heart Fire descends, cold dissipates; what is there to doubt?"
Zhi Nao Gao (Pheasant Brain Ointment) Treats chronic frostbite that recurs annually, starting with itching followed by pain, then swelling, rupture, and continuous discharge of yellow fluid and blood.
Xiong Zhi Nao (Male Pheasant Brain, one piece, pounded to paste) Huang La (Beeswax, equal parts) Qing You (Clear Oil, half the amount)
Simmer all ingredients slowly over low heat until they form an ointment, filter out residues, and store in porcelain containers. Apply to the wound each time.
Bai Ye Gao (Cypress Leaf Ointment) Treats frostbite where fingers/toes are about to fall off or ears are about to detach.
Bai Ye (Cupressus Leaves, roasted dry and powdered, 4 liang) Xing Ren (Apricot Kernels, peeled and pounded, 40 pieces) Tou Fa (Human Hair, fist-sized) Yan Yan (Rock Salt, half liang, pounded) Ru Xiang (Frankincense, 2.5 qian, pounded) Huang La (Beeswax, 1 liang) You (Oil, 1 sheng)
First boil the oil, then add the first five herbs. Once the medicinal aroma is released, add the beeswax and stir evenly. Store in a porcelain box. First wash the wound with warm urine, dab dry with cotton, then apply the medicine. Wrap with soft cloth to prevent cold air invasion. Change daily; if the wound improves, change every 3-4 days.
Golan San (Olive Kernel Powder) Treats foot frostbite.
Burn olive kernels to ash while preserving their nature, grind into powder. Add Qingfen (Calomel), mix with oil, and apply.
A girl of several years old went to the capital during severe cold. Her feet became numb from freezing. She soaked them in hot water. By spring, all ten fingers were rotten and hanging on. I used Tuo Li formulas (supporting interior tonics) to assist her Yang Qi to naturally separate the dead tissue, thereby saving her life. This was because Cold Evil obstructed circulation, preventing vital energy flow, compounded by soaking in hot water, leading to necrosis without pain. I have seen people who go out in extreme cold suffer ear frostbite, losing sensation. If touched by hand, the ear may detach. They should remain in a warm place for a long time or be warmed by hands to recover safely. If exposed to fire or hot water, the ear will die completely and inevitably slough off by spring. Northern cold damages humans so severely; one must examine this carefully.