湿毒疮，生于足胫之间，状如牛眼，或紫或黑，脓水淋漓，止处即溃烂，久而不敛。此
因脾胃亏损，湿热下注，以致肌肉不仁而成；又或因暴风疾雨，寒湿暑热侵入肌肤所致。在
外属足太阳、少阳经，在内属足厥阴、太阴经。初觉急服荆防通圣散加木瓜、牛膝、防己、
苍术治之；若延久不愈者，宜服补中益气汤合二妙散，外搽制柏散，或金黄散。
肾脏风者，属肾虚，风邪乘于 胫，以致皮肤如癣，或渐延上腿，久则延久遍身。外证
则瘙痒成疮，脓水淋漓，眼目昏花；内证则口燥舌干，腰腿倦怠，吐痰发热，盗汗体疲。治
法用六味丸为主，佐以四生散；若脾胃虚弱者，用补中益气汤为主，佐以六味丸、四生散为
善；外贴黄蜡膏。
蜘蛛疮，或衣沾蜘蛛遗尿，或虫蚁游走，染毒而生。形与水窠疮相似，淡红，作痒且痛
，五、七个成簇，日渐延开，甚亦使人恶寒发热。即以犀角磨汁涂之则愈；否则以苎麻在
疮上揉搓出水，用金黄散搽之；或以雄黄、枯矾等分，研细，干掺亦可。
漆疮者，漆味辛热，火象有毒之物，人之皮毛腠理不密，故感其毒而成。初起发泡，作
痒变疮，甚则传变肢体，皮破烂斑，流水作痛，寒热交作。须忌浴热汤，兼戒口味，不然，
即变顽风癣癞矣。以杉木花煎汤洗之；用杭粉、石膏、轻粉、韭汁调搽；或生鸡蛋黄涂之
，频换。
冻疮，乃天时严冷、气血冰凝而成。初起紫斑，久则变黑，腐烂作脓，手足耳边俱有之
。用楝树果煎汤淋洗，以生附子为末，加楝树子肉捣和，面水调敷；或用黄蜡一两溶化，入
松香三分，搅匀搽涂。
湿毒疮，生长在足部和小腿之间，形状像牛的眼睛，颜色或紫或黑，脓液和渗出液淋漓不断，停止流动的地方就会溃烂，长时间不能愈合。这是因为脾胃功能亏损，湿热之邪向下灌注，导致肌肉失去知觉而形成的；又可能是因为暴风骤雨，寒湿、暑热侵入肌肤所致。在体表归属于足太阳经、足少阳经，在体内归属于足厥阴经、足太阴经。初起时觉得急迫，应迅速服用荆防通圣散（Jingfang Tongsheng San），加入木瓜、牛膝、防己、苍术进行治疗；如果拖延日久不愈，应当服用补中益气汤（Buzhong Yiqi Tang）合二妙散（Ermiao San），外用制柏散（Zhibai San）涂抹，或者使用金黄散（Jinhuang San）。
肾脏风（Shen Zang Feng，一种因肾虚受风引起的皮肤病），属于肾虚，风邪侵袭小腿，导致皮肤像癣一样，或者逐渐蔓延到大腿，时间久了则蔓延至全身。外在症状是瘙痒形成疮疡，脓水淋漓，眼睛昏花；内在症状是口燥舌干，腰腿倦怠，吐痰发热，盗汗身体疲乏。治疗方法以六味丸（Liuwei Wan）为主，辅以四生散（Sisheng San）；如果脾胃虚弱的人，以补中益气汤为主，辅以六味丸、四生散为适宜；外用贴敷黄蜡膏（Huangla Gao）。
蜘蛛疮（Zhizhu Chuang，即带状疱疹），或者是衣服沾上了蜘蛛留下的尿液，或者是虫蚁爬行，感染毒气而生。形状与水窠疮（一种疱疹类疾病）相似，颜色淡红，既痒又痛，五七个成簇出现，日渐扩散，严重时也会使人恶寒发热。立即用犀角磨成的汁液涂抹即可痊愈；否则用苎麻在疮上揉搓出水，用金黄散涂抹；或者用雄黄、枯矾各等份，研细，干撒也可以。
漆疮（Qichuang，接触性皮炎），漆的味道辛热，是有毒的火性物质，人的皮毛腠理如果不致密，所以感受其毒气而形成。初起时发泡，发痒变成疮疡，严重时传变到肢体，皮肤破烂斑点，流水疼痛，寒热交替发作。必须忌讳洗热水澡，同时戒除口味刺激的食物，不然，就会变成顽固的风癣癞疾。用杉木花煎汤清洗；用杭粉、石膏、轻粉、韭菜汁调匀涂抹；或者用生鸡蛋黄涂抹，频繁更换。
冻疮（Dongchuang），是由于天气严寒，气血凝结冰滞而成。初起时有紫斑，久了变黑，腐烂化脓，手、足、耳朵周围都有发生。用楝树果实煎汤淋洗，将生附子研末，加入楝树果肉捣碎混合，用面粉和水调匀敷贴；或者用一两黄蜡熔化，加入三分松香，搅匀涂抹。
Damp-toxin sores (Shidu Chuang) occur between the feet and shins, resembling ox eyes in shape, with colors varying from purple to black. Pus and exudate drip continuously, and where the flow stops, ulceration occurs; they fail to heal for a long time. This condition arises from the deficiency of the Spleen and Stomach, causing damp-heat to sink downward, resulting in insensibility of the muscles. It may also be caused by the invasion of cold-dampness or summer-heat into the skin due to violent winds and heavy rains. Externally, it involves the Foot-Taiyang and Foot-Shaoyang meridians; internally, it involves the Foot-Jueyin and Foot-Taiyin meridians. At the initial stage, when urgency is felt, one should immediately administer Jingfang Tongsheng San (Jingfang Tongsheng Powder), adding Chaenomelis Fructus (Mu Gua), Achyranthis Bidentatae Radix (Niu Xi), Stephaniae Tetrandrae Radix (Fang Ji), and Atractylodis Rhizoma (Cang Zhu). If the condition persists without healing, one should take Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction) combined with Ermiao San (Two Marvels Powder), applying externally Zhibai San (Processed Phellodendron Powder) or Jinhuang San (Golden Yellow Powder).
Kidney wind (Shen Zang Feng) belongs to Kidney deficiency, where wind pathogens attack the shins, causing the skin to resemble tinea, or gradually spreading up the thighs. In prolonged cases, it spreads over the whole body. External symptoms include itching leading to sores, dripping pus and water, and blurred vision; internal symptoms include dry mouth and tongue, fatigue in the waist and legs, expectoration of phlegm with fever, night sweats, and general debility. The treatment method uses Liuwei Wan (Six-Ingredient Pill with Rehmannia) as the principal formula, assisted by Sisheng San (Four Generations Powder). For those with weak Spleen and Stomach, Buzhong Yiqi Tang should be used as the principal formula, assisted by Liuwei Wan and Sisheng San, which is advisable. Externally, apply Huangla Gao (Yellow Beeswax Ointment).
Spider sores (Zhizhu Chuang) arise from clothing touching spider urine or from insects crawling, becoming infected with toxins. The appearance resembles Shuike Chuang (Water Vesicle Sores); it is pale red, itchy and painful, appearing in clusters of five to seven, spreading day by day, and in severe cases causing aversion to cold and fever. Immediately rubbing the area with rhinoceros horn juice will cure it; otherwise, rub ramie on the sore until fluid appears, then apply Jinhuang San; or mix realgar and calcined alum in equal parts, grind finely, and sprinkle dry powder directly.
Lacquer dermatitis (Qichuang) is caused by lacquer, which has a pungent and hot nature and is a toxic fire-like substance. If the pores and interstices of the skin are not dense, one becomes infected by its toxin, leading to this condition. Initially, blisters form, causing itching and turning into sores; severely, it spreads to the limbs, with broken skin, spots, flowing fluid, pain, and alternating chills and fever. One must avoid bathing in hot water and refrain from strong flavors; otherwise, it may transform into stubborn wind-tinea or leprosy-like conditions. Wash with decoction of Cunninghamia Flower (Shanmu Hua); apply a mixture of Hangfen (prepared starch), Gypsum Fibrosum (Shigao), Calomelas (Qingfen), and Allii Tuberosi Juice (Jiu Zhi); or apply raw egg yolk, changing frequently.
Chilblains (Dongchuang) are formed due to severe cold weather causing the freezing and coagulation of Qi and Blood. Initially, purple spots appear; later, they turn black, rot, and suppurate. They occur on hands, feet, ears, and surrounding areas. Wash with decoction of Melia Toosendan Fruit (Lianshu Guo). Grind Raw Aconite Root (Sheng Fuzi) into powder, mix with Melia Toosendan pulp, and apply as a paste using flour and water; or melt one liang of yellow beeswax, add three fen of rosin, stir well, and apply.