立斋曰∶一身起疙瘩，搔破脓水淋漓，若寒热往来者，肝经气血虚而有火也。用八珍汤
加丹皮、柴胡。寒热内热者，血气弱而虚热也。八珍汤倍加参、术。若恶寒形寒者，阳气虚
寒也。用十全大补汤。若肌肤搔如帛隔者，气血不能外荣也，人参养营汤。若面部抓之麻木
，气血不能上荣也。补中益气汤。若痿弱筋挛者，血气不能滋养也。补中益气汤佐以六味地
黄丸。
一、遍身疙瘩，或隐疹搔痒，此风热伤血，用羌活当归散。气虚者，佐以补中益气汤加
山栀、钩藤钩。血虚者，佐以加味逍遥散加钩藤钩。若手足皴裂，不问黯白，或于手足腿腕
搔起白皮，此风热燥涩也。用清胃散加芍药。
一、面赤搔痒，或眉毛脱落，此属肺经风热。用人参消风散、桦皮散。气虚用补中益气
汤加天麻、僵蚕。血虚用加味逍遥散加钩藤钩。若面发紫泡，或成块，或眉毛脱落，属肝经
风热。先用小柴胡汤加山栀、丹皮、钩藤钩，后用加味逍遥散。凡证属肝经血燥生风者，但
宜滋肾水生肝血，则火自息，风自定，痒自止。
一、疠疡之有兼证变证，凡如表里脏腑诸病，无不有之，其各治法亦已具悉各门。但有
所值，即宜随证参用之，左右逢源，无弗善也，重录资繁，兹不赘及。
一、敷砒霜，患处作痛或腐溃者，用湿泥频涂换之。若毒瓦斯入腹，胸膈苦楚，或作吐泻
，饮冷米醋一二杯即止，多亦不妨。生绿豆末、芝麻油俱可。敷贴雄黄药，闷乱或吐泻，用
防己煎汤解之。服辛热药而眉发脱落者，乃肝经血伤而火动，非风也。用四物汤、六味丸，
以滋肝血生肾水。服川乌、草乌等药，闷乱流涎，或昏愦呕吐，或出血、吐血。用大豆、远
志、防风、甘草，任用一味煎汤解之。大凡服风药过多，皆宜用之，如未应，急用甘草生姜
汁。敷贴巴豆之药，患处作痛，肌肉溃烂，以生黄连为末，水调敷之。若毒入内，吐泻等证
，更以水调服一二钱，或大小豆、菖蒲汁，皆可。敷贴藜芦，毒入内，煎葱汤解之。服祛风
克伐之药，呕吐少食，胸膈不利，或形气倦怠等证，用六君子汤以补阳气。若烦热作渴，饮
食不思，或晡热内热，面赤发热。用四物汤加参、术以生阴血。余从各门治之。
薛己（字立斋）说：全身出现疙瘩，抓破后脓水淋漓，如果伴有寒热往来症状的，是肝经气血虚弱且有虚火所致。使用八珍汤加入牡丹皮、柴胡。如果表现为内部发热、恶寒的，是血气虚弱导致的虚热。使用八珍汤加倍人参、白术。如果有怕冷、身体发冷的症状，是阳气虚弱寒冷所致。使用十全大补汤。如果皮肤瘙痒感觉像隔着丝绸一样，是气血不能外达荣养肌肤所致，用人参养营汤。如果面部抓挠时感到麻木，是气血不能上荣于头面所致，用补中益气汤。如果出现肢体痿软无力、筋脉拘挛的症状，是血气不能滋养筋骨所致，用补中益气汤配合六味地黄丸。
第一，遍身出现疙瘩，或者隐疹瘙痒，这是风热损伤了血分，使用羌活当归散。如果是气虚体质，配合补中益气汤加入山栀、钩藤钩。如果是血虚体质，配合加味逍遥散加入钩藤钩。如果手足皮肤干裂，不论肤色黑或白，或者在手脚腿腕处搔起白皮，这是风热导致的燥涩，使用清胃散加入芍药。
第二，面部发红瘙痒，或者眉毛脱落，这属于肺经风热。使用人参消风散、桦皮散。如果是气虚，用补中益气汤加入天麻、僵蚕。如果是血虚，用加味逍遥散加入钩藤钩。如果面部出现紫泡，或者结成块状，或者眉毛脱落，属于肝经风热。先用小柴胡汤加入山栀、丹皮、钩藤钩，后用加味逍遥散。凡是证候属于肝经血燥生风的，只应当滋补肾水生肝血，那么虚火自然平息，风邪自然安定，瘙痒自然停止。
第三，疠疡（麻风等严重皮肤病）出现的兼证和变证，凡是像表里脏腑的各种疾病，没有不具备的，其各自的治法也已经详细记载在各个门类中。但是遇到具体病例，就应当随证参考应用，左右逢源，没有不好的，重新记录过于繁杂，这里不再赘述。
第四，敷贴砒霜，患处疼痛或者腐烂溃烂的，用湿泥频繁涂抹更换。如果毒气进入腹部，胸膈部痛苦难受，或者发生呕吐腹泻，饮用冷米醋一二杯即可停止，多喝也无妨。生绿豆末、芝麻油都可以使用。敷贴含有雄黄的药物，导致神志昏乱或者呕吐腹泻，用防己煎汤解毒。服用辛热药物导致眉发脱落的，是肝经血液受伤而虚火妄动，并非风邪所致。使用四物汤、六味地黄丸，来滋肝血、生肾水。服用川乌、草乌等药物，导致神志昏乱流涎，或者昏迷不醒呕吐，或者出血、吐血。使用大豆、远志、防风、甘草，任选一味煎汤解毒。大凡服用风药过多，都适宜使用上述方法解毒，如果无效，紧急使用甘草生姜汁。敷贴含有巴豆的药物，患处疼痛，肌肉溃烂，以生黄连研为末，用水调匀敷之。如果毒气进入体内，出现呕吐腹泻等症状，再用水调服一二钱，或者大小豆、菖蒲汁，都可以使用。敷贴藜芦，毒气进入体内，煎葱汤解毒。服用祛风克伐性质的药物，出现呕吐、食欲不振、胸膈不适，或者形体气息倦怠等症状，使用六君子汤来补益阳气。如果出现烦热口渴、饮食不思，或者下午发热、内部发热、面部发红发热，使用四物汤加入人参、白术来滋生阴血。其余情况参照各门治法处理。
Xue Ji (courtesy name Lizai) stated: When nodules appear all over the body, and scratching them causes pus to ooze profusely, accompanied by alternating chills and fever, this is due to deficiency of Qi and Blood in the Liver Channel with internal fire. Use Bazhen Tang (Eight Treasure Decoction) added with Mudanpi (Moutan Cortex) and Chaihu (Bupleuri Radix). If there is internal heat with aversion to cold, this is deficiency-heat caused by weak Qi and Blood. Use Bazhen Tang (Eight Treasure Decoction) with doubled amounts of Renshen (Ginseng Radix et Rhizoma) and Baizhu (Atractylodis Macrocephalae Rhizoma). If there is aversion to cold and a cold sensation in the body, this is Yang Qi deficiency and coldness. Use Shiquan Dabu Tang (Ten Great Tonifying Decoction). If the skin feels itchy as if covered by silk, this is because Qi and Blood cannot nourish the exterior; use Renshen Yangying Tang (Ginseng Nourishing Camp Decoction). If the face feels numb when scratched, this is because Qi and Blood cannot ascend to nourish the head and face; use Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction). If there is flaccidity and tendon spasms, this is because Qi and Blood cannot nourish the sinews and bones; use Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction) combined with Liuwei Dihuang Wan (Six-Ingredient Rehmannia Pill).
First, nodules appearing all over the body, or hidden rashes with itching, are caused by Wind-Heat injuring the Blood. Use Qianghuo Danggui San (Notopterygii and Angelica Powder). For those with Qi deficiency, combine with Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction) added with Shanzhi (Gardeniae Fructus) and Goutenggou (Uncariae Ramulus cum Uncis). For those with Blood deficiency, combine with JiaWei Xiaoyao San (Modified Free and Easy Wanderer Powder) added with Goutenggou (Uncariae Ramulus cum Uncis). If the hands and feet have cracked skin, regardless of whether the complexion is dark or fair, or if white skin scales up on the hands, feet, legs, and wrists after scratching, this is due to Wind-Heat causing dryness and obstruction. Use Qingwei San (Clear the Stomach Powder) added with Shaoyao (Paeoniae Radix).
Second, facial redness with itching, or loss of eyebrows, belongs to Wind-Heat in the Lung Channel. Use Ren Shen Xiao Feng San (Ginseng Eliminating Wind Powder) and Huapi San (Birch Bark Powder). For Qi deficiency, use Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction) added with Tianma (Gastrodiae Rhizoma) and Jiangcan (Bombyx Batryticatus). For Blood deficiency, use JiaWei Xiaoyao San (Modified Free and Easy Wanderer Powder) added with Goutenggou (Uncariae Ramulus cum Uncis). If purple blisters appear on the face, or form lumps, or if eyebrows fall out, this belongs to Wind-Heat in the Liver Channel. First use Xiaochaihu Tang (Minor Bupleurum Decoction) added with Shanzhi (Gardeniae Fructus), Danpi (Moutan Cortex), and Goutenggou (Uncariae Ramulus cum Uncis); subsequently use JiaWei Xiaoyao San (Modified Free and Easy Wanderer Powder). For any syndrome belonging to Wind generated from Blood dryness in the Liver Channel, one should only nourish Kidney Water to generate Liver Blood, so that Fire will naturally subside, Wind will settle, and itching will cease.
Third, regarding concurrent and transformed syndromes of Li Yang (Leprosy/Severe Skin Diseases), such as various diseases of the Exterior, Interior, Zang, and Fu organs, none are absent. Their respective treatment methods are already fully detailed in their respective sections. However, upon encountering specific cases, one should apply them flexibly according to the syndrome, achieving versatility and effectiveness without fail. Re-recording them here would be overly cumbersome, so they are not repeated.
Fourth, if applying Pishuang (Realgar/Arsenic compound) causes pain or ulceration at the site, frequently apply and replace with wet mud. If the toxin enters the abdomen, causing distress in the chest and diaphragm, or vomiting and diarrhea, drinking one or two cups of cold rice vinegar will stop it; consuming more is also acceptable. Raw Green Bean Powder (Lüdou Mo) and Sesame Oil are both suitable. If applying medicines containing Xionghuang (Realgar) causes mental confusion, vomiting, or diarrhea, use Fangji Decoction (Stephania Decoction) to resolve the toxicity. If taking acrid-hot medicines leads to loss of eyebrows and hair, this is due to injury of Liver Blood and stirring of Fire, not Wind. Use Siwu Tang (Four Substances Decoction) and Liuwei Wan (Six-Ingredient Pill) to nourish Liver Blood and generate Kidney Water. If taking Chuanwu (Aconiti Radix Preparata) or Caowu (Aconiti Kusnezoffii Radix Preparata) causes mental confusion, salivation, coma, vomiting, bleeding, or hematemesis, use Soybean (Dadou), Yuanzhi (Polygalae Radix), Fangfeng (Saposhnikoviae Radix), or Gancao (Glycyrrhizae Radix et Rhizoma); choose any one herb to decoct in water to resolve the toxicity. Generally, excessive intake of Wind-dispelling herbs can be resolved by these methods; if ineffective, urgently use Gancao (Licorice Root) and Ginger Juice. If applying medicines containing Badou (Crotonis Fructus) causes pain and muscle ulceration at the site, grind raw Huanglian (Coptidis Rhizoma) into powder, mix with water, and apply externally. If the toxin enters the interior, causing vomiting and diarrhea, take one or two qian mixed with water, or use large/small beans or Changpu juice (Acori Tatarinowii Rhizoma Juice). If applying Lili (Veratrum nigrum) causes internal toxicity, decoct Scallion (Cong Bai) water to resolve it. If taking Wind-dispelling and draining medicines causes vomiting, poor appetite, chest discomfort, or fatigue and weakness of form and Qi, use Liujunzi Tang (Six Gentlemen Decoction) to tonify Yang Qi. If there is irritability, heat, thirst, lack of appetite, afternoon fever, internal heat, facial redness, and fever, use Siwu Tang (Four Substances Decoction) added with Renshen (Ginseng Radix et Rhizoma) and Baizhu (Atractylodis Macrocephalae Rhizoma) to generate Yin Blood. Other cases should be treated according to the methods in their respective sections.