According to *Chao Shi Bing Yuan* (Source of Diseases by Chao Yuanfang) regarding the reduction of scars after chickenpox/smallpox following cold damage: The occurrence of sores and pustules in cold damage diseases is caused by heat-toxin. When the disease subsides, the sores heal, but the toxic qi has not yet fully dissipated. Therefore, even if the scabs have fallen off, the remaining scars may still be uneven or raised with flesh. It is thus appropriate to use medicinal preparations that dispel toxins and reduce scars for external application.

Tan's Pediatric Formula for treating facial scars from smallpox/chickenpox in children.
Take Huangming Jiao (Yellow Clear Gelatin), roast it slowly over low fire until powdered. Mix one Qianbi (ancient unit of measurement, approx. a small spoonful) with warm wine and ingest. If the pustules have erupted, taking this will prevent scarring; if they have not yet erupted, it will promote their discharge.

Tan's Pediatric Formula for treating scars from smallpox/chickenpox.
Grind Mituo Seng (Litharge/Lead Monoxide) finely. Mix with water and apply at night; wash off the next morning, and the skin will become smooth.

*Sheng Hui Fang* (Formulas from the Holy Benefit Bureau) for treating initial healing of rashes and smallpox/chickenpox caused by heat-toxin in children, a formula to reduce scars.
Jili Zi (Tribulus Fruit) and Chi Shao (Fermented Soybean) (each 1 liang); Zhizi Ren (Gardenia Seed) (2 liang).
Pound the above ingredients and sieve them into a fine powder. Mix with vinegar-water to form a paste. Apply to the scars every night, and wash off the next day with weak starch water.

Another formula from *Sheng Hui Fang*.
Hu Fen (Basic Lead Carbonate) (1 liang); Ni Fen (Calomel/Mercurous Chloride) (1 fen).
Mix the above ingredients and grind evenly. Combine with refined lard to form a ointment. Apply thinly to the scars every night, and wash off with starch water the next morning.

Another formula from *Sheng Hui Fang*.
Ying Fen Bai (White Eagle Droppings) (1 liang); Yi Zhong Bai Yu (Silverfish found in clothes) (20 pieces).
Grind the above ingredients finely and mix with white honey to a consistency like thin soup. Apply to the scars.

Another formula from *Sheng Hui Fang*.
Mu Li (Oyster Shell calcined into powder) (3 liang); Tu Gua Gen (Trichosanthes Root) (1 liang).
Pound the above ingredients and sieve into a fine powder. Take 2 qian each night, mix with white honey, and apply to the face and scars. Wash off the next morning with warm starch water.

*Sheng Hui Fang* ointment for reducing scars after the resolution of macular rash and smallpox/chickenpox caused by heat-toxin from cold damage in children.
Ma Chi Xian (Purslane natural juice) (1 sheng); Refined Lard (3 liang).
Mix the above ingredients and simmer over low fire to form an ointment. Apply to the scars day and night.

Another formula from *Sheng Hui Fang*.
Yang Zhi (Sheep Fat) (one whole piece, soaked in 1 sheng of wine overnight; stir and filter to remove residue next day; take pure sheep fat removing all fascia); Niu Su (Cow Butter/Ghee) (4 liang).
Place these two ingredients in a silver pot and simmer over low fire for three to five boils. Filter through new cotton into a clean container. Apply to the face every night. The next morning, take 1 liang of raw Gan Cao (Licorice Root), boil in two large bowls of starch water for seven or eight boils, remove dregs, let cool to a suitable temperature, and use to wash the face.

Another formula from *Sheng Hui Fang*.
Zhu Zhi (Pork Fat) (1 jin); Tian Shu (Sky Rat droppings/Bat Guano) (2 pieces).
Finely chop these two ingredients and place in a pot. Simmer until the Tian Shu is scorched, then strain to extract the grease. Massage and apply to the scars day and night.

Another formula from *Sheng Hui Fang*.
Take 2 liang of feces from the cranial cavity (likely referring to specific animal waste used in ancient contexts, literally "skull dung"), grind into powder. Mix with 3 he of refined lard from the twelfth lunar month, stir evenly, and apply to the scars.

Another formula from *Sheng Hui Fang*.
Take Chuan Sheng Ma (Cimicifugae Rhizoma), quantity unspecified, finely cut, decoct in water, remove dregs to obtain the juice. Dip cotton in the juice and wipe the scars.

Another formula from *Sheng Hui Fang*.
Chi Shao (Fermented Soybean) (1 sheng); Yang Fen (Sheep Droppings) (1 he).
Mix the above ingredients, add 1 dou of water, boil for more than ten times, remove dregs. Use the liquid at a comfortable temperature to bathe the scarred areas.

Another formula from *Sheng Hui Fang*.
Take 2 liang of finely cut Huang Bo (Phellodendron Bark), decoct in 2 sheng of water to obtain 1 sheng, remove dregs. Rub onto the scars.

Another formula from *Sheng Hui Fang*.
Take 1 liang of fine powder from Chi Xiao Dou (Adzuki Bean), mix with egg white to a consistency like thin syrup, and apply to the scars.

Another formula from *Sheng Hui Fang*.
Take high-quality Bai Mi (White Honey), quantity unspecified, apply to the entire body where sores exist. Once the scabs fall off, no scars will remain.

*Sheng Hui Fang* for treating pediatric rashes and smallpox/chickenpox, and reducing scars.
Take 1 liang of Yang Sui (Sheep Bone Marrow), refine it, add 1 fen of Qing Fen (Calomel), and grind into a white ointment. Store in a porcelain box and apply to the sores; it is extremely effective in reducing scars.

Zhang Huan's Qing Jin San (Blue Gold Powder) for treating persistent smallpox/chickenpox, bran-like rash, and scars.
Bai Ji Li (Tribulus Fructus) and Shan Zhi Zi (Gardeniae Fructus) (both ground into fine powder); Qing Dai (Indigo Naturalis) (finely ground, half liang each); Ni Fen (Calomel) (ground, 1 fen).
Grind all ingredients together into a fine powder. Take a small amount each time, mix with raw oil, and apply to the sores.

*Liang Fang* (Good Prescriptions) for treating variola (smallpox) without leaving scars.
Frequently remove the scabs, ensuring they do not cover the underlying skin, so that scars do not form. Even if slight bleeding occurs during removal, applying Mian Gao (Facial Ointment) will cause no distress. Patients with sores must not consume chicken or duck eggs, as this will immediately cause blindness. The pupils becoming cloudy like egg white is a sign that comes true like a spirit; one must not disregard this warning.