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Black Tin (one jin, melted into liquid, mixed with ten liang of white ash from mulberry firewood and stir-fried together until the tin is fully consumed, then add four liang of green salt and stir-fry again, allow to cool slightly, grind into powder, seal in a porcelain bottle, bury underground for five days, take out and add the following herbs) Shengma (Cimicifugae Rhizoma), Xixin (Asari Radix et Rhizoma) (each one liang), Hezi (Terminalia Chebulae Fructus) (four liang).
Stir-fry the above herbs until black, mix evenly with the previously prepared powder. If used as a dental preparation, hair will naturally turn black after one hundred days; if immediate effect is desired, brush teeth daily and rinse with good wine, showing results within one month.

Ointment

Qingyou (Clear Oil, half a jin), Baijiaoxiang (Balsamum Storacis, seven qian half red, seven qian half white), Shaofen (Lead White Powder, half a liang), Nifen (Calomel, seven pieces in winter, [text missing for summer]).
Grind the above ingredients finely, put them into the oil, boil in a silver vessel using alternating mild and strong heat, stir with a small bundle made from willow branches facing south, until it becomes an ointment with an amber color. Test on the bottom of a white bowl; stop when it does not spread. For burns from hot water or fire, and metallic wounds, apply with a chicken feather; for chronic malignant sores, wash clean with saliva-mixed starch water, or use a dough ring around the sore and pour the medicine inside, stopping pain immediately; for cuts from knives or axes, pour the medicine on the injured area to stop pain and bleeding, healing without scars.

Treating meridians affected by wind-cold pathogenic factors, causing connected sinews and vessels, skin pain, nodular accumulation, spasms, and numbness. Formula by Zhang Caiqing. Muguezi (Semen Momordicae, one liang, peel removed, crushed to the size of small beans, soaked in two liang of clear oil for one to two nights, then slowly boiled until the oil reduces by half, remove, add one qian of yellow beeswax, stir evenly until wax melts, filter through silk cloth to remove dregs). Ruxiang (Boswelliae Resina, one qian, separately ground fine; when the Muguezi oil and wax are about to congeal, quickly throw into the oil and stir continuously).
Store in a porcelain container. Apply a small amount to areas of muscle and skin pain and hardness, rubbing continuously until extremely hot.

Wanjin Gao (Ten Thousand Gold Ointment) for treating all types of carbuncles, furuncles, and toxins. Shen Renfu, a judicial official, suffered from a severe brain carbuncle exposing bone at age seven or eight, with extreme pain. This formula was transmitted by Shangshu Shen De. Applied once at night, pain reduced; changed five times over a few days, resulting in complete recovery. Same as formula by Zhang Chengzu.
Dagancao Genjie (Radix Glycyrrhizae Preparata, root nodes, four liang, crushed and peeled), Zhenmayou (True Sesame Oil, eight liang), Huangdan (Lithargyrum, four liang, best quality).
Crush Gancao root nodes into inch-long segments, crush them, keeping one long segment aside for stirring. Place in a silver or ceramic vessel with oil, fry Gancao until scorched yellow, remove and discard. Add Huangdan, stir constantly with the reserved long Gancao stick until black. Test by dropping a little into water; if it forms a cohesive ball and does not scatter, it is ready. Filter through cotton, seal in a bottle, bury two chi deep in the earth for twenty days, then retrieve. Best prepared in the twelfth lunar month. For back carbuncles, form pills the size of Sophora japonica seeds, fifty pills per dose, taken with Gancao decoction; external application follows standard methods.