小儿有冻疮者。多生于耳叶或脚上。由冬月严寒之气所伤。客于肌肤。搏于血气所作。初即肿痒。须渐破而
成疮。颇难得瘥。至春暖时自可。到冬月冷时复发。故名冻疮。
黄柏膏
治冻疮。
黄柏（末） 白蔹（末各一两） 白芨（末半两） 生芝麻（二合杵烂取汁）
上同研匀细。以蒸萝卜一枚。好酒一盏。一处杵烂成膏。每用少许。先以童子小便洗疮了。后以药涂。
又方 以雀儿脑髓涂之。立瘥。
小儿夏月多生痱疮。此由盛热汗津出而腠理开。被风热毒瓦斯干
于血气所生。其状细碎。累累如粟芥之类。色赤而痒。多生额头胸背之上。甚者遍身。俗呼痱子。痒而搔之。亦
能成疮。
治痱疮 以菟丝子茎 汤洗之。亦治头疮。及女人面疮。
治痱疮痛不止 干藕节末三两。生麻油三合。先杵油麻烂后。下藕节末。更入生蜜。和调得所。涂之三五
次。瘥。
龙脑散
治痱疮。
龙脑（一分研） 黄柏（末） 白面（二两） 腊茶（一两研末）
上拌匀。每以新绵 药扑上。破者敷之。取瘥。
又方 以蚌粉研细。用雪水稀调。临卧涂之。能以热汤浴毕涂之。更佳。无雪水用新水。
又方 以雪水磨檀香。鹅毛蘸扫上。
小儿偶有谓漆疮者。本不耐漆。或因见闻。或因使新漆器。被漆气所触。便着其毒而生肿赤。状似瘾疹。破
而作疮。微有脓汁。亦颇疼痛。俗呼为漆咬疮也。
化毒散
治漆疮痒痛。
木通（一两锉） 蓝叶（半两） 麦门冬（半两去心） 犀角屑（一分） 马牙硝（一分） 甘草（一分炙
微赤锉）
上粗散。每服一钱，水一小盏，煎至半盏。去滓温服。
垂柳膏
治如前。
垂柳枝（五两） 苦参（二两） 黄芩（一两）
上锉散。每用三匙。水两碗。煎至一碗，去滓。研入好墨汁半匙搅匀。再熬成膏。以瓷盒盛。候冷。用少
许涂疮上。
又方 以好麻油生用涂上。以黄芦术锉碎，煎浓汁放冷淋之。
Infants and children may develop chilblains, which often occur on the earlobes or feet. This condition is caused by severe cold qi in winter invading the body, lodging in the skin and muscle layers, and clashing with blood and qi. Initially, it presents with swelling and itching, gradually breaking down to form sores that are difficult to heal quickly. Symptoms typically resolve spontaneously when spring warmth arrives but recur during the cold winter months; hence, it is named "chilblains" (frozen sores).
Huangbai Ointment
Treats chilblains.
Ingredients: Huangbai (Phellodendri Cortex) powder, Bailian (Ampelopsis Radix) powder, each 1 liang; Baiji (Bletillae Rhizoma) powder, 0.5 liang; fresh sesame seeds, 2 he (crushed to extract juice).
Preparation and Administration: Grind all ingredients into a fine, uniform powder. Take one steamed radish and one cup of good wine, crush them together with the powder until an ointment consistency is achieved. Apply a small amount after first washing the sore with urine from a young boy.
Another prescription: Apply brain marrow from sparrows to the affected area for immediate cure.
Children frequently develop prickly heat (miliaria) in summer. This arises from excessive sweating due to intense heat, causing the couli (skin pores) to open, allowing wind-heat toxic qi to invade the blood and qi. The lesions appear as fine, dense clusters resembling millet grains or mustard seeds, red in color and itchy. They commonly occur on the forehead, chest, and back, and in severe cases, cover the entire body. Colloquially known as "prickly heat," scratching due to itching can also lead to ulceration.
Treatment for prickly heat: Wash the affected area with a decoction of Cuscutae Caulis (Dodder Stem). This method is also effective for head sores and facial sores in women.
For persistent pain from prickly heat: Use 3 liang of dried lotus root node powder and 3 he of raw hemp oil. First, crush the hemp seeds in the oil, then add the lotus root powder and mix well with raw honey. Apply to the affected area three to five times until healed.
Longnao Powder
Treats prickly heat.
Ingredients: Longnao (Borneolum Syntheticum), 1 fen (ground); Huangbai (Phellodendri Cortex) powder; Baifan (Tritici Fructus Imparatus), 2 liang; Lacha (Tea Leaves processed in winter), 1 liang (ground).
Preparation and Administration: Mix thoroughly. Dip new cotton wool into the powder and dust it onto the affected area. For broken sores, apply directly as a dressing until cured.
Another prescription: Finely grind Concha Tridacnitis (Clam Shell Powder), dilute with snow water, and apply before sleep. Application after a hot bath yields better results. If snow water is unavailable, use freshly drawn well water.
Another prescription: Grind Tanxiang (Sandalwood) using snow water, dip a goose feather into the mixture, and sweep/apply it to the affected area.
Occasionally, infants and children develop lacquer dermatitis (qi chuang). This occurs because the individual is intolerant to lacquer, either through visual exposure, contact, or use of new lacquerware. Exposure to lacquer vapors causes toxicity to manifest as redness and swelling, resembling urticaria (wind-weals). Upon rupture, sores form with slight pus discharge and significant pain. Colloquially referred to as "lacquer bite sores."
Huadu San
Treats itching and pain caused by lacquer dermatitis.
Ingredients: Mutong (Akebiae Caulis), 1 liang (chopped); Lanye (Isatidis Folium), 0.5 liang; Maidong (Ophiopogonis Radix), 0.5 liang (heart removed); Xijiao (Rhinocerotis Cornu), 1 fen; Mayaxiao (Natrii Sulfas), 1 fen; Gancao (Glycyrrhizae Radix et Rhizoma), 1 fen (stir-fried until slightly reddish, chopped).
Preparation and Administration: Prepare as a coarse powder. Take 1 qian per dose, add 1 small cup of water, boil down to half a cup, strain, and take warm.
Chui Liu Gao
Treats the above conditions.
Ingredients: Chui Liu Zhi (Salix Purpurea Twig), 5 liang; Kushen (Sophorae Flavescentis Radix), 2 liang; Huangqin (Scutellariae Radix), 1 liang.
Preparation and Administration: Chop the herbs. Take three spoons of the material, add two bowls of water, boil down to one bowl, and strain. Add half a spoon of high-quality ink juice, stir well, and simmer into an ointment. Store in a porcelain container. Once cooled, apply a small amount to the sores.
Another prescription: Apply raw high-quality hemp oil directly to the affected area. Additionally, chop Huanglushu (Ardisiae Japonicae Radix), boil to make a concentrated decoction, let it cool, and wash the area with it.