汤氏云∶小儿伤湿，血气壅滞则生疮，多由父母奶子，不好洁净，衣褥不与频换洗濯，或尿屎秽污，连日不洗，亦
能浸渍而成疮。天气温和，频与澡洗更衣，名曰外宣，亦不须服药，小儿不得已而服药，此乃下策，将养合宜，何病何
侵，更令乳哺有节，勿令过饱，其身乃如莳树，此调养之理也。浴方春用柳条、荆芥，夏用枣叶、槐枝，秋冬用苦参，
频浴身安外宣无病。金华散又敷疮癣等方，皆可用也。摩风膏敷疮癣极妙，兼服羌活散加防风、荆芥及大连翘饮、升
麻汤等剂。
金华散 治干湿疮癣。
黄丹（ 、一两） 轻粉（一钱） 黄柏 黄连（各半两） 麝香（少许）
上为末，先洗，次干掺之，如干癣疮，用腊月猪脂和敷；如无，用麻油。亦可加黄芩大黄。
摩风膏 治小儿遍身疥癣瘙痒。
苦参 沥青 芜荑（炮） 黄蜡（各一钱） 巴豆（三粒、去壳） 轻粉（五分） 全蝎（二枚） 真麻油（半两）
上用麻油煎至巴豆焦，滤去所煎物，入轻粉和匀，敷疮疥效。
一方 治恶癣，以紫贝草根、生白矾少许，同擂烂涂患处，两次可断根。
又方 用砒少许，滴醋同熬为膏，涂之。
又方 以斑猫去头足，糯米炒黄，去米，以淮枣煮熟，去皮取肉为丸，唾津调搽之尤妙。
羌活散 见第二十问人参羌活散。
大连翘汤 见第三问大连翘饮子。
升麻汤 见第五十二问。
Tang Shi stated: When infants contract dampness, the stagnation of blood and qi leads to the generation of sores. This is mostly due to parents or wet nurses failing to maintain cleanliness, not frequently changing and washing clothes and bedding, or allowing urine and feces to soil the body without washing for consecutive days, which can also macerate the skin and cause sores. When the weather is mild, frequently bathing and changing the infant's clothes is called "external venting" (Wai Xuan), and medication is unnecessary. If the infant is forced to take medicine, this is a last resort. With proper nursing, no disease will invade. Furthermore, breastfeeding should be regulated to prevent overfeeding; thus, the child's body will grow strong like a carefully tended tree. This is the principle of nursing. For bathing prescriptions: use willow twigs and Schizonepetae Herba (Jingjie) in spring; Ziziphi Spinosae Folium (Zaoye) and Sophorae Flavescentis Ramulus (Huazhi) in summer; and Saposhnikoviae Radix (Kushen) in autumn and winter. Frequent bathing ensures physical health and prevents disease through external venting. Jinhua San and other formulas for treating sores and tinea are all applicable. Mofeng Gao is excellent for applying to sores and tinea. Internally, one may take Qianghuo San added with Saposhnikoviae Radix (Fangfeng) and Schizonepetae Herba (Jingjie), as well as Dalianqiao Yin, Shengma Tang, and other preparations.
Jinhua San treats dry and damp sores and tinea.
Dan Hong (Calcined, 1 liang) Calomelas (Qingfen, 1 qian) Phellodendri Cortex (Huangbai) Coptidis Rhizoma (Huanglian) (each 0.5 liang) Moschus (Shexiang, a small amount)
Grind the above into powder. First wash the affected area, then apply the dry powder. For dry tinea sores, mix with lard from the twelfth lunar month for application; if unavailable, use sesame oil. Huangqin Radix (Huangqin) and Rheum Palmatum Radix et Rhizoma (Dahuang) may also be added.
Mofeng Gao treats generalized scabies and tinea itching in infants.
Sophorae Flavescentis Radix (Kushen) Asphaltum (Liqing) Myrobalan Fructus (Wuyi, processed) Beeswax (Huangla) (each 1 qian) Crotonis Fructus (Badou, 3 grains, shelled) Calomelas (Qingfen, 0.5 fen) Scorpio (Quanxie, 2 pieces) Sesame Oil (Zhenshanyou, 0.5 liang)
Decoct the above in sesame oil until the Badou is scorched black. Filter out the decocted materials, add Qingfen, and mix evenly. Apply to sores and scabies for efficacy.
Another prescription for treating severe tinea: Grind Radix Arisaematis Cum Bile (Zibeigen) and a small amount of Alum (Baifan) together until paste-like, then apply to the affected area. Two applications can eradicate the root cause.
Another prescription: Use a small amount of Realgar (Pi), simmer with vinegar until it forms a paste, and apply.
Another prescription: Remove the head and feet of Mylabris (Banmao), stir-fry with glutinous rice until yellow, remove the rice, boil Chinese Jujube (Huazao) until cooked, peel and take the flesh to form pills. Mix with saliva for topical application, which is particularly effective.
Qianghuo San See Question 20, Renshen Qianghuo San.
Dalianqiao Tang See Question 3, Dalianqiao Yinzi.
Shengma Tang See Question 52.