〔薛〕 赤白游风，属脾肺气虚，腠理不密，风热相搏，或寒闭腠理，内热怫郁。或
阴虚火动，外邪所乘。或肝火风热，血热。治法∶若风热用小柴胡汤加防风、连翘。血热
用四物加柴胡、山栀、丹皮。风热相搏，用荆防败毒散。内热外寒，用加味羌活散。胃
气虚弱，用补中益气汤加羌活、防风及消风散。血虚用加味逍遥散。阴虚逍遥散、六味
丸。若肝肾虚热，用六味丸，则火自息，风自定，痒自止。若用祛风辛热之剂，则肝血
愈燥，风火愈炽，元气愈虚，腠理不闭，风客内淫，肾气受伤，相火翕合，血随火化，反
为难治矣。 一男子，秋间发疙瘩，此元气虚而外邪所侵也。先用九味羌活汤二剂，又
用补中益气加羌、防而愈。后不慎起居，盗汗晡热，口干唾痰，体倦懒言，用补中益气
汤加减八味丸而愈。 一妇人，身如丹毒，搔破脓水淋漓，热渴头晕，日晡益甚，用加味
逍遥散而愈。 一妇人，患赤白游风，晡热痒甚。予用清肝养血之剂，不信。乃服大麻
风药，臂痛而筋挛，又服化痰顺气之剂，四肢痿弱而殁。 一妇人患前症，数用风药，煎
汤泡洗，以致腹胀而殁。 一女子，赤晕如霞，作痒发热，用加味小柴胡汤加生地黄、连
翘、牡丹皮而愈。
如冰散 治风邪热毒，壅滞肌肉，荣卫
不宣，蕴积成肿，血涩肤腠，如丹之状，风随气行，游无定处，邪毒攻冲， 赤热痛。
朴硝（五两，另研） 寒水石 蛤粉（各三两） 白芷（一两） 片脑（一钱，另研）
上为细末，研匀。每用新汲水调，稀稠得所，以鸡翎涂扫，不令药干。
治赤游肿方
川大黄（二两） 慎火草（五两）
上各捣涂之，干即再涂。
治赤游肿流，遍身赤色，入腹即死方。
上用生猪肉敷上，数数换之。其肉虫、鸟俱不食，臭恶甚也。
[Xue Ji] Chi Bai You Feng (Red and White Wandering Wind), also known as erysipelas, belongs to the deficiency of Spleen and Lung Qi, with loose Cou Li (skin texture and pores), where Wind-Heat combats each other, or Cold closes the Cou Li causing internal Heat to be stifled. It may also result from Yin deficiency leading to stirring of Fire, allowing external pathogens to take advantage; or from Liver Fire combined with Wind-Heat, resulting in Blood Heat. Treatment methods: If it is Wind-Heat, use Xiao Chai Hu Tang (Minor Bupleurum Decoction) with Fang Feng (Saposhnikovia Root) and Lian Qiao (Forsythia Fruit). If it is Blood Heat, use Si Wu Tang (Four Substances Decoction) with Chai Hu (Bupleurum Root), Shan Zhi (Gardenia Fruit), and Dan Pi (Moutan Cortex). If Wind-Heat combats each other, use Jing Fang Bai Du San (Schizonepeta and Saposhnikovia Powder for Resolving Toxins). If there is internal Heat and external Cold, use Jia Wei Qiang Huo San (Modified Notopterygium Powder). If Stomach Qi is weak, use Bu Zhong Yi Qi Tang (Tonify the Middle and Augment the Qi Decoction) with Qiang Huo (Notopterygium Rhizome), Fang Feng, and Xiao Feng San (Eliminate Wind Powder). If there is Blood deficiency, use Jia Wei Xiao Yao San (Modified Free and Easy Wanderer Powder). If there is Yin deficiency, use Xiao Yao San (Free and Easy Wanderer Powder) and Liu Wei Wan (Six-Ingredient Pill with Rehmannia). If there is deficiency Heat of the Liver and Kidney, use Liu Wei Wan (Six-Ingredient Pill with Rehmannia); then the Fire will naturally subside, the Wind will settle, and the itching will stop. If one uses acrid-hot drugs to dispel Wind, the Liver Blood will become drier, the Wind-Fire more rampant, the Yuan Qi (Original Qi) more deficient, the Cou Li less closed, Wind guests will invade internally, Kidney Qi will be injured, Ming Men Fire (Ministerial Fire) will flare up, Blood will transform with Fire, making it difficult to treat.
A man developed wheals in autumn; this was due to deficiency of Yuan Qi and invasion by external pathogens. Initially, he took two doses of Jiu Wei Qiang Huo Tang (Nine-Ingredient Notopterygium Decoction), followed by Bu Zhong Yi Qi Tang (Tonify the Middle and Augment the Qi Decoction) with added Qiang Huo and Fang Feng, which cured him. Later, due to careless living habits, he experienced night sweats, afternoon fever, dry mouth, expectoration of phlegm, body fatigue, and reluctance to speak. He was cured using Bu Zhong Yi Qi Tang (Tonify the Middle and Augment the Qi Decoction) modified with Ba Wei Wan (Eight-Ingredient Pill).
A woman had a body resembling Dan Du (Erysipelas); scratching caused pus and water to ooze profusely, accompanied by fever, thirst, and dizziness, worsening in the afternoon. She was cured using Jia Wei Xiao Yao San (Modified Free and Easy Wanderer Powder).
Another woman suffered from Chi Bai You Feng (Red and White Wandering Wind), with evening fever and severe itching. I prescribed herbs to clear Liver heat and nourish Blood, but she did not believe in them. Instead, she took medicines for Leprosy (Da Ma Feng), resulting in arm pain and tendon contraction. She then took herbs to resolve phlegm and regulate Qi, ultimately dying from flaccidity of the four limbs.
Another woman with the aforementioned condition used wind-dispelling drugs multiple times, decocting them for washing, which led to abdominal distension and death.
A young woman had red halos like rosy clouds, with itching and fever. She was cured using Jia Wei Xiao Chai Hu Tang (Modified Minor Bupleurum Decoction) with Sheng Di Huang (Rehmannia Root), Lian Qiao, and Mu Dan Pi.
Ru Bing San (Like-Ice Powder): Treats Wind-Evil and Heat-Toxin obstructing muscles, where Ying and Wei (Nutritive and Defensive) Qi are not circulating freely, accumulating into swelling. Blood flow is sluggish, skin and Cou Li are damaged, presenting a shape like Erysipelas. Wind travels with Qi, wandering without a fixed location. The pathogenic toxin attacks, causing redness, heat, and pain.
Piao Xiao (Mirabilite, 5 liang, ground separately), Han Shui Shi (Stalactite), Ge Fen (Concha Meretrix, 3 liang each), Bai Zhi (Angelica Dahurica, 1 liang), Pian Nao (Borneol, 1 qian, ground separately).
Grind all into fine powder and mix evenly. Each time, mix with fresh cold water to an appropriate consistency. Apply with a chicken feather, ensuring the medicine does not dry out.
Formula for Treating Red Wandering Swelling:
Chuan Da Huang (Rhubarb Radix et Rhizoma, 2 liang), Shen Huo Cao (Hedyotis diffusa, 5 liang).
Grind each separately and apply externally. Reapply when dry.
Formula for Treating Red Wandering Swelling Flow, where the whole body is red, fatal if it enters the abdomen:
Apply raw pork to the affected area, changing it frequently. Neither insects nor birds will eat this meat due to its extremely foul odor.