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Bu Hui Mu (Not-burning Wood) is indicated for treating heat-related miliaria and sores. Jujube leaves and calcined stone are calcined together to make a powder, which is applied to the body (Recorded by Famous Physicians). [Name] Wu Hui Mu (No-ash Wood). [Origin] *Bencao Tujing* states: It originates from Shangdang; nowadays it is found in the mountains of Zezhou and Luzhou. It is likely a type of stone. Its color is greenish-white like rotten wood; it does not burn when ignited, hence its name. Some say it is the root of Huashi (Talcum), found wherever Talcum is produced, also called Wu Hui Mu. Nowadays, in the mountains of Chuzhou, a type of Songshi (Pine Stone) is produced, resembling pine trunks but solid as stone. Some claim it is pine trees transformed into stone over time. People often use it to decorate mountain pavilions or carve them into pillows. Although not used in medicine, it is similar to Bu Hui Mu, so it is appended here. [Harvesting] Anytime. [Texture] Similar to rotten wood. [Color] Greenish-white. [Flavor] Bland. [Nature] Greatly Cold. [Qi and Flavor] Both Qi and flavor are thin/light, Yin in nature. [Odor] Rotten. [Indication] Apply to treat hot sores. [Preparation] Chen Zangqi says: Grind finely for medicinal use; it must be burned to ash. This involves chopping it up, boiling it in ox milk, and then burning it with yellow ox manure until it becomes ash.

Non-toxic. Grows in earth.
Peng Sha (Borax) is indicated for resolving phlegm, stopping cough, breaking up accumulations, treating Hou Bi (sore throat/laryngeal obstruction), and for soldering gold and silver (Recorded by Famous Physicians). [Name] Peng Sha. [Origin] *Bencao Tujing* states: It originates from the South Sea. Its appearance is very lustrous and crystalline, sometimes in large blocks. Nowadays, it is a crucial herb for physicians treating throat diseases. (*Bencao Yan Yi* states): Borax from Nanfan has a dark brown color, a mild taste, and rapid efficacy. Borax from Xirong is white in color, has a scorched/bitter taste, and slow efficacy; it is unsuitable for soldering. [Harvesting] Anytime. [Storage] Store in porcelain vessels. [Selection Criteria] Those that are lustrous, crystalline, and dark brown are best. [Color] White or brown. [Flavor] Bitter, Pungent. [Nature] Warm, with draining/descending properties. [Qi and Flavor] Strong Qi, thin flavor, Yang within Yin. [Odor] Fishy. [Indication] Treat Hou Bi (throat closure). [Preparation] Grind finely for use. [Treatment Method] (*Bencao Yan Yi* states): Dissolve in the mouth and swallow the saliva to treat swelling and pain in the throat and phlegm-heat above the diaphragm. Use at the first sign of discomfort; even if severe Hou Bi does not fully develop, it can alleviate the condition and achieve efficacy.

Non-toxic.
Qian Shuang (Lead Frost) is indicated for resolving phlegm, arresting palpitations due to fright, detoxifying alcohol, treating chest and epigastric oppression, wind-stroke with phlegm-solidity, and quenching thirst (Recorded by Famous Physicians). [Origin] *Bencao Tujing* states: Take 15 liang of lead from Pingze in Shu Commandery and 1 liang of mercury from Pingtu in Fuling, smelt them together into sheets, place them in a vinegar jar, seal tightly, and after a long period, frost forms on them, called Qian Bai Shuang (White Lead Frost). Nowadays, physicians use it frequently. (*Bencao Yan Yi* states): Applying it to papaya removes the sour taste, illustrating the principle of Metal overcoming Wood. [Medicinal Part] Frost. [Color] White. [Nature] Cold. [Qi and Flavor] Thin Qi, Yang within Yin. [Odor] Rotten. [Indication] Arrest palpitations, dispel wind-phlegm. [Preparation] Grind finely for use. [Treatment Method] (*Bencao Tujing* states): Resolve wind-phlegm and calm fright. (*Bencao Yan Yi* states): Cool heat in the diaphragm, clear phlegm-fluid obstruction. (*Mingyi Bielu* states): Grind into powder, mix with one qian using fresh well water, and take orally to stop epistaxis. [Combined Treatment]: Grind finely, take one qian, mix with one he of warm fresh Rehmanniae Radix juice, and administer. This treats menstrual stagnation in unmarried women accompanied by vexation and mental confusion. Alternatively, decocting Rehmanniae Radix in water and mixing the powder into the decoction is also effective. [Detoxification]: Detoxifies alcohol.