论曰小儿风瘙瘾疹者，由风邪客于腠理，搏于营卫，传而为热。熏散肌肉，溢于皮肤，
变生瘾疹，状如 ，乍瘥乍发，痒瘙不时，搔之血出，其痒不已，故名风瘙瘾疹赤疹者热，
白疹者寒，治法不可不察。
治小儿肺风瘙痒，瘾疹疥癣。五参散方
人参 紫参 白附子（炮裂各二分） 栝蒌根（锉） 天麻（各半两） 玄参（锉） 沙
麻（锉
各一两） 丹参（三分）
上八味，同捣为散，五十日至百日儿，每服一字，二百日至一岁儿，每服一字半，奶汁
调下。二岁至三岁，每服半钱匕，煎薄荷金银汤，或枣汤调下，空心午后各一服，如乳母服，
每服一钱匕，温酒调下。
治小儿风疹，壮热心躁。黄 汤方
黄 （锉） 白藓皮（锉） 防风（去叉各一分） 枳壳（去瓤麸炒一升） 黄芩（去
黑心） 甘
草（炙各一分）
上六味，粗捣筛，每服一钱匕，水一盏，煎至五分，去滓温服，食后临卧各一。
治小儿瘾疹风痒。防风汤方
防风（去叉） 白茯苓（去黑皮） 升麻 贝母（去心） 蒺藜子（炒去角） 大黄（锉
炒） 甘
草（炙锉各一分）
上七味，粗捣筛，每服一钱匕，水七分，煎至四分，去滓温服，食后，日二。
治小儿风疹，皮肤肿。枳实汤方
枳实（去瓤炒黄两片） 芍药（一分）
上二味，粗捣筛，每服一钱匕，水半盏，煎至三分，去滓入清酒半合，更煎三五沸。分
温二服，空心午间晚后各一，更量大小加减。
治小儿风疹，石楠汤方
石楠叶（一把） 蜀椒（去目及闭口者炒出汗半两）
上二味，以水二盏，煎取一盏半，去滓下硝石白矾各半两，搅令消，以绵 涂于疹处，
干即易。
治小儿瘾疹。莽草汤方
莽草 防风（去叉） 附子（炮裂去皮脐） 牡蛎（ 过各一两）
上四味，粗捣筛，以水一斗，煮取七升，去滓适寒温浴，避风。
治小儿风疹出不止。涂敷方
白矾（熬令汁枯）
上一味，研为末，酒调，用鸡翎扫涂疹上。
又方
景天（一两一分慎火草是也） 蓝（三两）
上二味，同捣研，绞取汁，以热手摩涂之，日再。
治小儿风疹，壮热心躁。犀角汤方
犀角（镑） 升麻 麦门冬（去心焙） 蒺藜子（炒去角） 甘草（炙各一分）
上五味， 咀如麻豆大，每服二钱匕，水一盏，煎至五分，去滓食后温服，更量岁数加
减。
论述说：小儿风瘙瘾疹，是由于风邪侵袭腠理（皮肤纹理及汗孔），与营卫之气相搏结，进而转化为热邪。热邪熏蒸散漫于肌肉，溢出于皮肤，从而变生为瘾疹。其症状表现为皮疹时隐时现，瘙痒无定时，抓挠后出血，瘙痒不止，因此命名为“风瘙瘾疹”。其中，红色疹子属热证，白色疹子属寒证，治疗法则不可不仔细辨别。
治疗小儿肺风引起的瘙痒、瘾疹及疥癣的五参散方：
人参、紫参、白附子（炮制裂开，各二分）、栝蒌根（锉碎）、天麻（各半两）、玄参（锉碎）、沙参（锉碎，各一两）、丹参（三分）。
以上八味药，共同捣碎过筛成散剂。五十日至百日大的婴儿，每次服用“一字”量；二百日至一岁的幼儿，每次服用“一字半”量，用乳汁调服。二岁至三岁的儿童，每次服用“半钱匕”量，煎煮薄荷金银汤，或用枣汤调服，空腹及午后各服一次。如果乳母服用，每次服用“一钱匕”量，用温酒调服。
治疗小儿风疹，伴有高热、心中烦躁的黄耆汤方：
黄耆（锉碎）、白鲜皮（锉碎）、防风（去叉枝，各一分）、枳壳（去瓤，麸炒，一升）、黄芩（去黑心）、甘草（炙，各一分）。
以上六味药，粗捣筛过，每次服用“一钱匕”，加水一盏，煎煮至五分，去渣温服，饭后及临睡前各服一次。
治疗小儿瘾疹风痒的防风汤方：
防风（去叉枝）、白茯苓（去黑皮）、升麻、贝母（去心）、蒺藜子（炒去角刺）、大黄（锉碎炒制）、甘草（炙，锉碎，各一分）。
以上七味药，粗捣筛过，每次服用“一钱匕”，加水七分，煎煮至四分，去渣温服，饭后服用，每日两次。
治疗小儿风疹，皮肤肿胀的枳实汤方：
枳实（去瓤，炒至微黄，两片）、芍药（一分）。
以上两味药，粗捣筛过，每次服用“一钱匕”，加水半盏，煎煮至三分，去渣后加入清酒半合，再煎煮三五沸。分两次温服，空腹、午间、晚后各服一次，并根据患儿年龄大小酌情增减剂量。
治疗小儿风疹的石楠汤方：
石楠叶（一把）、蜀椒（去掉目及闭口者，炒至出油，半两）。
以上两味药，用水二盏，煎取一盏半，去渣后加入硝石、白矾各半两，搅拌使其溶解，用棉签蘸取涂抹于患处，干了就更换。
治疗小儿瘾疹的莽草汤方：
莽草、防风（去叉枝）、附子（炮制裂开，去皮脐）、牡蛎（煅烧过，各一两）。
以上四味药，粗捣筛过，用水一斗，煮取七升，去渣，调节水温适宜后洗浴，注意避风。
治疗小儿风疹发作不止的外涂敷方：
白矾（熬至汁液枯干）。
以上一味药，研为细末，用酒调匀，用鸡毛扫涂在疹子上。
又一方：
景天（一两一分，即慎火草）、蓝（三两，指青黛或板蓝根类药材）。
以上两味药，共同捣碎研磨，绞取汁液，用热手按摩涂抹患处，每日两次。
治疗小儿风疹，伴有高热、心中烦躁的犀角汤方：
犀角（镑片）、升麻、麦门冬（去心，焙干）、蒺藜子（炒去角刺）、甘草（炙，各一分）。
以上五味药，切碎如麻豆大小，每次服用“二钱匕”，加水一盏，煎煮至五分，去渣，饭后温服，并根据患儿岁数酌情增减剂量。
It is stated that infantile wind-induced pruritic urticaria (Feng Sao Yin Zhen) arises from wind pathogenic factors invading the Cou Li (skin texture and pores), struggling with Ying Wei (Nutritive and Defensive Qi), and transforming into heat. The heat steams and scatters within the muscles, overflows onto the skin, and transforms into urticaria. The presentation involves rashes appearing and disappearing intermittently, itching occurring at irregular intervals, bleeding upon scratching, and unceasing pruritus; hence it is named "wind-induced pruritic urticaria." Red rashes indicate Heat syndrome, while white rashes indicate Cold syndrome; therefore, therapeutic principles must be carefully examined.
Formula of Five Shen (Wu Shen San) for treating infantile lung-wind pruritus, urticaria, and tinea:
Ren Shen (Ginseng Radix et Rhizoma), Zi Shen (Stemona Radix), Bai Fu Zi (Aconiti Kusnezoffii Radix Praeparata, prepared until cracked, 2 fen each), Gua Lou Gen (Trichosanthis Radix, crushed), Tian Ma (Gastrodiae Rhizoma, 0.5 liang each), Xuan Shen (Scrophulariae Radix, crushed), Sha Shen (Glehniae Radix or Adenophorae Radix, crushed, 1 liang each), Dan Shen (Salviae Miltiorrhizae Radix, 3 fen).
The above eight herbs are pounded together and sieved to make a powder. For infants aged 50 to 100 days, administer one "zi" dose per time; for toddlers aged 200 days to one year, administer one and a half "zi" doses per time, mixed with milk juice. For children aged two to three years, administer half a "qian bi" dose per time, mixed with decocted Bo He Jin Yin Tang (Mint and Honeysuckle Decoction) or Jujube Decoction, taken on an empty stomach and in the afternoon. If the nursing mother takes it, administer one "qian bi" dose per time, mixed with warm wine.
Huang Qi Tang (Astragalus Decoction) for treating infantile wind-rash accompanied by high fever and mental restlessness:
Huang Qi (Astragali Radix, crushed), Bai Xian Pi (Dictamni Cortex, crushed), Fang Feng (Saposhnikoviae Radix, de-ramified, 1 fen each), Zhi Ke (Aurantii Fructus, pith removed, stir-fried with bran, 1 sheng), Huang Qin (Scutellariae Radix, black heart removed), Gan Cao (Licorice Radix et Rhizoma, honey-fried, 1 fen each).
The above six herbs are coarsely pounded and sieved. Administer one "qian bi" dose per time, add one zhan of water, decoct until five fen remains, remove the dregs, and take warm. Take once after meals and once before bedtime.
Fang Feng Tang (Saposhnikoviae Decoction) for treating infantile urticaria and wind-pruritus:
Fang Feng (Saposhnikoviae Radix, de-ramified), Bai Fu Ling (Poria, black skin removed), Sheng Ma (Cimicifugae Rhizoma), Bei Mu (Fritillariae Bulbus, heart removed), Ji Li Zi (Tribuli Fructus, stir-fried and thorns removed), Da Huang (Rhei Radix et Rhizoma, crushed and stir-fried), Gan Cao (Licorice Radix et Rhizoma, honey-fried and crushed, 1 fen each).
The above seven herbs are coarsely pounded and sieved. Administer one "qian bi" dose per time, add seven fen of water, decoct until four fen remains, remove the dregs, and take warm. Take after meals, twice daily.
Zhi Shi Tang (Immature Bitter Orange Decoction) for treating infantile wind-rash with skin swelling:
Zhi Shi (Aurantii Fructus Immaturus, pith removed, stir-fried until slightly yellow, two slices), Shao Yao (Paeoniae Radix, 1 fen).
The above two herbs are coarsely pounded and sieved. Administer one "qian bi" dose per time, add half a zhan of water, decoct until three fen remains, remove the dregs, add half he of clear wine, and boil for three to five boils. Divide into two warm doses, taken on an empty stomach, at noon, and in the evening. Adjust dosage according to age and size.
Shi Nan Tang (Kalmia Leaf Decoction) for treating infantile wind-rash:
Shi Nan Ye (Kalmiae Folium, one bundle), Shu Jiao (Zanthoxyli Pericarpium, remove eyes and closed ones, stir-fried until oil appears, 0.5 liang).
The above two herbs are decocted in two zhan of water until one and a half zhan remains. Remove the dregs, add Shi Xiao (Natrii Nitras) and Bai Fan (Alumen), each 0.5 liang, stir to dissolve, and apply to the rash area with cotton. Change when dry.
Mang Cao Tang (Dichroa Decoction) for treating infantile urticaria:
Mang Cao (Dichroae Radix), Fang Feng (Saposhnikoviae Radix, de-ramified), Fu Zi (Aconiti Lateralis Radix Praeparata, prepared until cracked, skin and umbilicus removed), Mu Li (Ostreae Concha, calcined, 1 liang each).
The above four herbs are coarsely pounded and sieved. Decoct in one dou of water until seven sheng remain. Remove the dregs, adjust temperature to suitability, and bathe. Avoid wind.
External Application Formula for treating incessant infantile wind-rash:
Bai Fan (Alumen, boiled until juice is dry).
The above single herb is ground into fine powder, mixed with wine, and swept onto the rash using a chicken feather.
Another Formula:
Jing Tian (Portulacae Herba, 1 liang 1 fen, also known as Shen Huo Cao), Lan (Indigo Naturalis or Isatidis Radix, 3 liang).
The above two herbs are pounded and ground together, juice is extracted by pressing, and applied by rubbing with warm hands. Apply twice daily.
Xi Jiao Tang (Rhino Horn Decoction) for treating infantile wind-rash accompanied by high fever and mental restlessness:
Xi Jiao (Rhinocerotis Cornu, shaved), Sheng Ma (Cimicifugae Rhizoma), Mai Men Dong (Ophiopogonis Radix, heart removed and baked), Ji Li Zi (Tribuli Fructus, stir-fried and thorns removed), Gan Cao (Licorice Radix et Rhizoma, honey-fried, 1 fen each).
The above five herbs are cut into pieces the size of hemp seeds. Administer two "qian bi" doses per time, add one zhan of water, decoct until five fen remains, remove the dregs, and take warm after meals. Adjust dosage according to the child's age.