《圣惠》云∶夫小儿有肌肉虚者，为风毒热气所乘，热毒搏于血气，则皮肤赤而
肿起，其风随气行游不定，故名也。又云∶夫游肿之状者，为青黄赤白，无复定色，
游走于皮肤之间，肉上微光，是也。
治小儿赤游，皮肤作片片赤肿，此是风热所致，宜服。
犀角散
犀角屑 黄芩 黄 川升麻 栀子仁 汉防己 川朴硝（各一分） 牛黄（半分，研）
上为末。煎竹叶汤调半钱，无时，量儿加减。
治小儿头面身体赤毒，肿起作片，宜用升麻膏
川升麻（一两） 犀角屑 射干 赤芍药 玄参 黄芩 栀子仁 川大黄 大青 蓝
子羚羊角屑（各半两） 生地黄（二两）
上锉，以猪脂一斤半，于铛中慢火熬，不住手搅，药色变，膏成，去滓，瓷合
盛，频摩肿处。
又方
黄柏末 川大黄末 川朴硝（各半两） 马勃 水银（各一分。水银于手心内、用津、研令星
尽） 鸡子（三个，去壳）
上，同研成膏。先以铍针铍破，然后以膏涂之。
又方
鸡冠花 商陆 紫矿 川大黄（各半两）
上为末。以鸡清入生油等分，调涂，干再涂。
又方
附子（去皮脐半两） 川椒（半两去目） 石盐（三分）
上为末，以炼了猪脂四两相和，慢火熬成膏，瓷合盛，候冷，频频涂，以瘥
为度。
治游肿攻头面 肿，赤热疼痛，宜用郁金散
郁金（半两） 赤小豆（一合） 甜葶苈（半两） 伏龙肝（二两） 川芒硝（半两） 川大
黄（生，半两）
上为末。以生鸡子白并蜜少许调，令稀稠得所，涂之，干再涂。
治游肿赤者。川大黄末（二两） 护火草（五两） 上相合，杵涂之，干易。
治赤白游肿。芸苔子（半合） 盐（一钱） 米醋（一鸡，子壳） 上杵如泥，看大小涂纸
上贴之，如走，即随处贴之，不三两上，效。
治青白赤游肿，手近微痛。
川大黄（生） 蒲黄 伏龙肝（各二两）
上为细末。水和如薄泥，涂之，干再用。
又方
川大黄（一两生） 豉（一合） 紫檀（一两）
上为末。醋和涂，干再用。
又方 紫檀香二两为末，水调涂。
治游肿，流遍身赤色，入腹即死。以生猪肉敷上，数数换之，其肉，虫鸟不食，臭
恶甚也。
治游肿，以生布一片， 油以火燃之，持照病上，咒曰，日游日游不知着脂火燎你
头，咒七遍，即瘥也。
治白游肿，杵生羊脾涂之。
又方 栝蒌根（二两，为末） 伏龙肝（半两，细研） 醋调涂，干再用。
《子母秘录》治小儿赤游，行于体上下，至心即死，以芒硝纳汤中，取浓汁，拭丹
上。杵菘菜敷之。取白豆末，水和涂，干再用。
《千金》中兴治赤游肿，若遍身入心腹，即杀人，用灶下黄土为末，油调涂，勿令
干，若已入腹及阴者，以护火草取汁一盏服之，干者即末之，水调服。
治赤白游肿簇上白臭死蚕治白游，赤死者治赤游，并捣涂之。
治赤游肿，捣栝蒌敷之。
《本草》云∶赤游、白疹、醋磨五毒草敷，亦杵茎敷之，恐毒入腹，亦煮服之。（五毒
草，一名五蕺，又名地圜，平地生，花叶如荞麦，根似狗脊）
According to the *Shenghui Fang* (Sanitary Handbook): In children with deficient muscles, wind-toxic heat pathogens invade. When heat-toxin clashes with blood and qi, the skin becomes red and swollen. This wind follows the movement of qi, wandering without a fixed location, hence the name "Youzhong" (Wandering Swelling). It is also stated: The manifestation of Youzhong involves colors of green, yellow, red, and white, lacking a fixed hue, wandering within the skin, with a slight luster on the flesh; this is Youzhong.
To treat Chiyou Dan (Red Wandering Swelling) in children, where the skin presents as patches of red swelling caused by wind-heat, Xijiao San (Rhinoceros Horn Powder) is indicated.
Ingredients: Xi Jiao Xiao (Rhinoceros Horn Shavings), Huang Qin (Scutellaria Root), Huang Qi (Astragalus Root), Chuan Sheng Ma (Bupleurum Root), Zhi Zi Ren (Gardenia Seed), Han Fang Ji (Stephania Tetrandra), Chuan Po Xiao (Mirabilite), Niu Huang (Calculus Bovis, half fen, ground).
Preparation: Grind all ingredients into powder. Mix with decoction of bamboo leaves and take half qian at any time, adjusting dosage according to the child's age.
For treating Chi Du (Red Toxicity) on the head, face, and body of children, presenting as patchy swelling, Shengma Gao (Bupleurum Ointment) is indicated.
Ingredients: Chuan Sheng Ma (1 liang), Xi Jiao Xiao, She Gan (Belamcanda Rhizome), Chi Shao Yao (Red Peony Root), Xuan Shen (Scrophularia Root), Huang Qin, Zhi Zi Ren, Chuan Da Huang (Rhubarb Root), Da Qing (Isatis Leaf), Lan Zi (Isatis Seed), Ling Yang Jiao Xiao (Antelope Horn Shavings) (each half liang), Sheng Di Huang (Rehmannia Root) (2 liang).
Preparation: Cut the herbs. Simmer slowly in 1.5 jin of lard in a pan, stirring constantly until the color changes and the ointment forms. Strain the dregs and store in a porcelain jar. Rub frequently onto the swollen area.
Another prescription:
Huang Bai Mo (Phellodendron Bark Powder), Chuan Da Huang Mo (Rhubarb Powder), Chuan Po Xiao (each half liang), Ma Bo (Puffball), Shui Yin (Mercury, each 1 fen. Grind mercury in the palm with saliva until no granules remain), Ji Zi (Chicken Egg, three, shell removed).
Preparation: Grind together into an ointment. First puncture the lesion with a Bi Zhen (Bi needle), then apply the ointment.
Another prescription:
Ji Guan Hua (Rooster Comb Flower), Shang Lu (Phytolacca Root), Zi Kuang (Dragon's Blood), Chuan Da Huang (each half liang).
Preparation: Grind into powder. Mix with egg white and equal parts of raw sesame oil for topical application. Reapply when dry.
Another prescription:
Fu Zi (Aconite Lateral Root, peeled and de-navel, half liang), Chuan Jiao (Sichuan Pepper, half liang, eyes removed), Shi Yan (Rock Salt, 3 fen).
Preparation: Grind into powder. Mix with 4 liang of refined lard. Simmer slowly into an ointment, store in a porcelain jar. Apply frequently when cool, until cured.
For Youzhong attacking the head and face, presenting with swelling, redness, heat, and pain, Yujin San (Curcuma Powder) is indicated.
Ingredients: Yu Jin (Curcuma Root), Chi Xiao Dou (Adzuki Bean), Ting Li Zi (Sweet Descurainia Seed), Fu Long Gan (Vermilion Dragon Liver/Chimney Soil), Chuan Mang Xiao (Niter), Chuan Da Huang (Raw, half liang).
Preparation: Grind into powder. Mix with raw egg white and a little honey to a suitable consistency. Apply topically. Reapply when dry.
For treating Chi You (Red Wandering Swelling): Chuan Da Huang Mo (2 liang), Hu Huo Cao (Fire Protection Herb, 5 liang). Mix and pound into a paste for application. Change when dry.
For treating Chi Bai You Zhong (Red and White Wandering Swelling): Yun Tai Zi (Rapeseed Seed, half he), Yan (Salt, 1 qian), Mi Cu (Rice Vinegar, one eggshell volume). Pound into mud. Apply on paper according to size. If the swelling moves, apply wherever it goes. Effective within three days.
For treating Qing Bai Chi You Zhong (Green, White, Red Wandering Swelling) with slight pain upon touch:
Chuan Da Huang (Raw), Pu Huang (Pollen Typhae), Fu Long Gan (each 2 liang).
Preparation: Grind into fine powder. Mix with water to a thin mud consistency for application. Reapply when dry.
Another prescription:
Chuan Da Huang (Raw, 1 liang), Chi (Fermented Soybeans, 1 he), Zi Tan (Zitan Wood, 1 liang).
Preparation: Grind into powder. Mix with vinegar for application. Reapply when dry.
Another prescription:
Zi Tan Xiang (Zitan Wood, 2 liang) ground into powder, mixed with water for application.
For treating Youzhong spreading over the whole body with redness, which is fatal if entering the abdomen: Apply fresh pork to the affected area and change frequently. The meat will not be eaten by insects or birds and will emit a foul odor.
For treating Youzhong: Take a piece of raw cloth, dip in oil, ignite it, and hold it near the patient while chanting: "Day you, day you, unaware of the grease fire burning your head." Chant seven times, and the disease will heal.
For treating Bai You Zhong (White Wandering Swelling): Pound fresh sheep spleen and apply.
Another prescription:
Gua Lou Gen (Trichosanthes Root, 2 liang, powdered), Fu Long Gan (Vermilion Dragon Liver, half liang, finely ground). Mix with vinegar for application. Reapply when dry.
The *Zimu Milu* treats pediatric Chi You, which travels up and down the body and is fatal if reaching the heart. Dissolve Mang Xiao (Niter) in hot water, take the concentrated juice, and wipe it on the rash. Pound Song Cai (Chinese Cabbage) and apply as a compress. Take Bai Dou (White Bean) powder, mix with water, and apply. Reapply when dry.
In *Qianjin Fang*, for treating Chi You Zhong, if it spreads over the whole body and enters the heart and abdomen, it is fatal. Use Tu Zhuang Huang Tu (Yellow Earth from under the stove) ground into powder, mixed with oil for application. Do not let it dry. If it has entered the abdomen and yin regions, take one cup of juice from Hu Huo Cao (Fire Protection Herb); if dried, grind into powder and take with water.
For treating Chi Bai You Zhong: Crush white smelly dead silkworms to treat Bai You, and red dead ones to treat Chi You. Apply both crushed.
For treating Chi You Zhong: Pound Gua Lou (Trichosanthes Fruit) and apply.
The *Ben Cao* states: For Chi You and Bai Zhen (White Rash), rub Wu Du Cao (Five Poison Herb) with vinegar and apply. Also, pound the stems and apply. To prevent toxin from entering the abdomen, it can also be boiled and taken orally. (Wu Du Cao, also known as Wu Ji, or Di Yuan, grows on flat ground, flowers and leaves resemble buckwheat, roots resemble Dog Spine).