澄曰∶马蚁窝，乃无意脚 马蚁而成，或风湿结成，多生手足，形似蚁窝，俨如
针眼，奇痒入心，破流脂水。宜用穿山甲外敷，亦有手背手腕生者。
锡灰膏（陈楚阳。）治马蚁窝，血疯 疮，痒极不可忍者。
灰（筛取细者，二钱五分） 轻粉（一钱五分） 葱白（一根）
同生犍猪油去皮、膜捣膏，用刷子脚搽疮上，外以三退纸封之，三日全愈。
三退纸
蝉蜕 凤凰衣（各三钱） 密陀僧（六钱）
桐油八两熬成膏，以刷蘸膏，于连四纸上阴干，用时照疮大小剪贴，三日一换，换三次全愈。
如痒极搽锡灰膏收功。
又方
密陀僧（三钱） 百草霜 风化锻石（各五钱） 霉酒曲（一两五钱）
共为末，先以松毛须捣烂，煎汤先透，再用松毛须烧烟熏之，任其流水，拭干，再
以桐油调敷，频用桐油润之，每日一换，七日除根。
又方 大黄 研末桐油调敷。
又方 桐油篓盖包患处，数夜即效。
马蚁窝并痒极成片之疮。（吴越千。）
轻粉（二钱） 穿山甲（一两。新瓦上炙，剪成豆大，再用土炒成珠）
共研细，以甘草汤洗净，用熟鸡蛋黄炒出油，调搽。
指缝搔痒成疮，有窍出血不止 多年粪桶篾箍烧灰敷之。
陈实功曰∶酸痛乃风寒气郁于皮毛，致血不荣于肌表，谓皮槁则多痛，手足似无
皮之状，是酸苦生焉。可将葱汤浸洗良久，随以润肌膏擦之，就暖勿见风冷，自愈。如
每逢冬时即发者，须预于三伏时，晒捣烂大蒜，间擦三次，永不再发。经曰∶寒因热用，其理甚明。（《正宗》）
王肯堂曰∶酸痛，因暴寒侵袭肌肤之中，寒郁不行，偶触衣物，或以手捺，疼
痛连心，俨如无皮之状是也。
顾世澄说：马蚁窝，是由于无意中被蚂蚁叮咬而成，也有因风湿邪气凝结所致，多生长在手足部位，形状像蚂蚁的巢穴，宛如针眼一般，奇痒钻心，破溃后流出脂水。适宜使用穿山甲外敷治疗，也有长在手背和手腕部位的。
锡灰膏（陈楚阳方）。治疗马蚁窝、血疯疮，瘙痒极度难以忍受者。
取细筛的锡灰二钱五分，轻粉一钱五分，葱白一根。
与去皮的生犍猪油一同捣制成膏状，用刷子涂抹在患处，外用三退纸封贴，三天即可痊愈。
三退纸配方：
蝉蜕三钱，凤凰衣三钱，密陀僧六钱。
将上述药材放入八两桐油中熬制成膏，用刷子蘸取药膏涂在连四纸上阴干。使用时根据疮口大小剪下贴敷，每三天更换一次，更换三次后即可痊愈。
如果瘙痒极度严重，可涂抹锡灰膏以收功。
又一方：
密陀僧三钱，百草霜五钱，风化锻石五钱，霉酒曲一两五钱。
共研为细末。先用松毛须捣烂，煎汤先熏洗患处至透彻，再用松毛须燃烧产生的烟熏患处，任其流水，擦干后，再用桐油调匀药末敷于患处，经常用桐油滋润，每日一换，七天可除根。
又一方：
用桐油浸过的篓盖包裹患处，数夜即见效。
马蚁窝以及瘙痒极度且成片状的疮疡。（吴越千方）
轻粉二钱，穿山甲一两（在新瓦上炙烤，剪成豆粒大小，再用土炒至起珠状）。
共研为细末，先用甘草汤洗净患处，用熟鸡蛋黄炒出油，调和药末涂抹。
指缝间搔痒成疮，有孔窍出血不止者，可用多年粪桶的竹篾箍烧成灰敷于患处。
陈实功说：酸痛是由于风寒之气郁结于皮毛，导致血液不能荣养肌表，所谓皮肤干枯则多疼痛，手足看起来像没有皮一样，酸苦的感觉由此产生。可以用葱汤浸泡清洗良久，随后涂抹润肌膏，注意保暖不要受风冷，自然就会痊愈。如果每逢冬季就发作的人，必须在三伏时节，提前晒并捣烂大蒜，间歇性擦拭三次，以后就永不再发。经书说：“寒病用热法治疗”，这个道理非常明白。（《外科正宗》）
王肯堂说：酸痛，是因为暴寒侵袭肌肤之中，寒气郁滞不行，偶尔触碰到衣物，或者用手按压，疼痛连心，看起来就像没有皮一样的状态。
Gu Shicheng stated: "Ma Yi Wo" (Ant Hill) arises from unintentional ant bites, or may be formed by the accumulation of Wind-Dampness. It mostly occurs on the hands and feet, resembling an ant nest, looking like a pinhole. It causes extreme itching that penetrates to the heart, and upon rupture, it exudes serous fluid. It is suitable for external application with Chuan Shan Jia (Pangolin Scales). Cases also occur on the back of the hands and wrists.
Xi Hui Gao (Tin Ash Ointment) [Prescription by Chen Chuyang]: Treats Ma Yi Wo and Xue Feng Chuang (Blood Madness Sores), characterized by unbearable extreme itching.
Ingredients: Xi Hui (Tin Ash, finely sifted) 2.5 qian; Qing Fen (Calomel) 1.5 qian; Cong Bai (Scallion White) 1 stalk.
Method: Pound these together with skinless fat from a castrated male pig (Jian Zhu You) to form an ointment. Apply to the sore with a brush, then seal with San Tui Zhi (Three-Retreat Paper). It will heal completely in three days.
San Tui Zhi (Three-Retreat Paper):
Ingredients: Chan Tui (Cicada Slough) 3 qian; Feng Huang Yi (Phoenix Coat/Inner Membrane of Eggshell) 3 qian; Mi Tuo Seng (Litharge) 6 qian.
Method: Boil these in 8 liang of Tong You (Tung Oil) until they form a paste. Brush the paste onto Lian Si Zhi paper and dry in the shade. When using, cut to fit the size of the sore and apply. Change once every three days; after three changes, it heals completely. If itching is extremely severe, apply Xi Hui Gao to conclude treatment.
Another Prescription:
Mi Tuo Seng (Litharge) 3 qian; Bai Cao Shuang (Soot from Hundred Herbs) 5 qian; Feng Hua Duan Shi (Weathered Calcined Alunite) 5 qian; Mei Jiu Qu (Moldy Wine Qu) 1.5 liang.
Method: Grind all into fine powder. First, pound Song Mao Xu (Pine Needle Whiskers) until mashed, decoct in water, and fumigate/wash the affected area thoroughly. Then, fumigate the area with smoke from burning pine needles. Allow discharge to flow freely, wipe dry, then mix the powder with Tong Oil for topical application. Keep moistened with Tong Oil frequently. Change once daily. The root cause will be eliminated in seven days.
Another Prescription:
Da Huang (Rhubarb Root) ground into powder, mixed with Tong Oil for topical application.
Another Prescription:
Wrap the affected area with a lid soaked in Tong Oil. Effect is seen after several nights.
For Ma Yi Wo and sores that are extremely itchy and appear in patches: [Prescription by Wu Yueqian]
Qing Fen (Calomel) 2 qian; Chuan Shan Jia (Pangolin Scales) 1 liang (Roast on a new tile, cut into bean-sized pieces, then stir-fry with earth until beads form).
Method: Grind finely. Cleanse the area with Gan Cao Tang (Licorice Decoction). Fry cooked egg yolk to extract oil, use this oil to mix the powder and apply.
For itching between fingers leading to sores with bleeding from pores that does not stop: Burn the bamboo hoop from a feces bucket used for many years into ash and apply topically.
Chen Shigong stated: "Suan Tong" (Sour Pain/Aching Pain) results from Cold-Wind Qi stagnating in the skin and hair follicles, causing blood to fail to nourish the muscle surface. As the saying goes, when the skin is dry and withered, pain prevails. The hands and feet appear as if devoid of skin, giving rise to sensations of sourness and bitterness. One may soak and wash the area in Scallion Water for a long time, then apply Run Ji Gao (Moisturizing Muscle Ointment). Keep warm and avoid wind and cold; it will heal spontaneously. For those who suffer recurrences every winter, one must prepare beforehand during the San Fu (Dog Days) period: sun-dry and pound garlic, applying it intermittently three times. This ensures it never recurs again. The Classics state: 'Treat cold conditions with heat methods,' which makes the principle very clear. (From *Waike Zhengzong*)
Wang Kentang stated: "Suan Tong" occurs when violent Cold invades the interior of the skin and muscles. The Cold stagnates and fails to circulate. Upon accidental contact with clothing or pressure from the hand, the pain connects to the heart, and the condition appears exactly as if the skin were absent.