（截樟树根叶枝干为薄片。置器中蒸之。蒸气着于盖上。冷即结晶。更加锻石等制成白
粉
樟脑主治。通窍。利气。杀虫。辟蠹。中恶。疥癣。风痒。强心。煎汤浴杀皮肤虫。置
履中除香港脚。
根主治。除一切冷。霍乱。反胃。天行疫瘴。吐食。泻痢。香港脚。疝气。气厥。头痛。
肿胀。喘急。妇人血凝气滞。小儿慢惊。腹中诸虫。疗痈疽疥疠。及猫犬百病。 乌沉汤。
天台乌药一百两。沉香五十两。人参三两。炙草四两。为末。每服半钱。姜盐汤调下。治一
切气。一切冷。补五脏。调中壮阳。暖腰膝。疗麻痹。膀胱肾间冷气。攻冲背膂俯仰不利。
风水毒肿。吐泻转筋。症癖刺痛。中恶心腹痛。天行疠疫。妇人血气痛。 乌药平气汤。乌
药一钱。茯神人参白术五味子川芎木瓜当归白芷苏叶各七分。甘草三分。加生姜大枣。水煎
服。治香港脚上攻。昏迷喘促。 乌药散。乌药莪术（醋炒）桂心当归（炒）桃仁青皮木香各
等分。
研末。每服二钱。热酒调下。治妇人血气攻心痛。 乌药顺气散。乌药麻黄（去根节泡）陈
皮
各二钱。白僵蚕（炒）干姜（泡）各五分。枳壳川芎桔梗白芷炙草各一钱。加生姜大枣。水
煎服。
治风气攻注。四肢骨节疼痛。遍身顽麻。语言謇滞。口眼 斜。喉塞痰涌。及瘫痪。步履艰
难。腰脚痿弱。 又方。乌药僵蚕白芷陈皮枳壳各八分。干姜甘草各五分。麻黄三分。加生
姜葱白。水煎服。治经来体痛不思食。
Cut the roots, leaves, branches, and trunks of the Camphor Tree (*Cinnamomum camphora*) into thin slices. Place them in a vessel for steaming. The steam condenses on the lid; upon cooling, crystals form. Add calcined minerals (Duan Shi) and other substances to process it into white powder (Camphor).
Camphor (*Zhang Nao*) indications: Opens orifices, regulates Qi, kills parasites, prevents moth damage, treats sudden evil qi invasion, tinea and pruritus, strengthens the heart. Decocting in water for bathing kills skin parasites. Placing it in shoes treats Tinea Pedis (Hong Kong Foot).
Root indications: Dispels all cold pathogens, Cholera, Regurgitation, epidemic miasma, vomiting food, diarrhea and dysentery, Tinea Pedis, Hernia, Qi syncope, headache, swelling, asthma and urgency, blood stasis and Qi stagnation in women, slow convulsions in children, various intestinal parasites, treats carbuncles, sores, leprosy, and various diseases in cats and dogs.
Wuchen Tang (Black Musk Decoction): 100 liang of Tiantai May Chang (*Lindera aggregata*), 50 liang of Agarwood (*Aquilaria sinensis*), 3 liang of Ginseng (*Panax ginseng*), 4 liang of Honey-fried Licorice Root (*Glycyrrhiza uralensis*). Grind into fine powder. Take half a qian each time, mixed with ginger-salt water. Treats all Qi stagnation, all cold pathogens, tonifies the five Zang organs, regulates the Middle Jiao, strengthens Yang, warms the waist and knees, treats numbness, cold Qi attacking between the bladder and kidney causing difficulty in bending and stretching the back and spine, wind-water toxic swelling, vomiting and diarrhea with muscle cramps, mass pain and stabbing pain, sudden epigastric pain, epidemic plague, and blood-Qi pain in women.
Wuyao Pingqi Tang (May Chang Calming Qi Decoction): 1 qian of May Chang (*Lindera aggregata*), 7 fen each of Spirit of Poria (*Poria cocos* with wood), Ginseng (*Panax ginseng*), Atractylodes Macrocephala Rhizome (*Atractylodes macrocephala*), Schisandra Fruit (*Schisandra chinensis*), Szechwan Lovage Rhizome (*Ligusticum chuanxiong*), Papaya (*Chaenomeles speciosa*), Angelica Sinensis Root (*Angelica sinensis*), White Peony Root (*Paeonia lactiflora*), Perilla Leaf (*Perilla frutescens*), 3 fen of Licorice Root (*Glycyrrhiza uralensis*). Add fresh ginger and Chinese jujube, decoct in water and take orally. Treats ascending Tinea Pedis Qi causing coma and panting.
Wuyao San (May Chang Powder): Equal parts of May Chang (*Lindera aggregata*), Curcuma Zedoary Rhizome (*Curcuma zedoaria*, vinegar-fried), Cinnamon Twig (*Cinnamomum cassia*), Fried Angelica Sinensis Root (*Angelica sinensis*), Peach Kernel (*Prunus persica*), Green Tangerine Peel (*Citrus reticulata*), Costus Root (*Saussurea costus*). Grind into powder. Take 2 qian each time, mixed with hot wine. Treats blood-Qi attacking heart pain in women.
Wuyao Shunqi San (May Chang Smooth Qi Powder): 2 qian each of May Chang (*Lindera aggregata*), Ephedra Herb (*Ephedra sinica*, soaked after removing root nodes), Dried Tangerine Peel (*Citrus reticulata*); 5 fen each of White Stiff Silkworm (*Bombyx batryticatus*, fried), Dried Ginger (*Zingiber officinale*, soaked); 1 qian each of Bitter Orange (*Citrus aurantium*), Szechwan Lovage Rhizome (*Ligusticum chuanxiong*), Platycodon Root (*Platycodon grandiflorus*), White Peony Root (*Paeonia lactiflora*), Honey-fried Licorice Root (*Glycyrrhiza uralensis*). Add fresh ginger and Chinese jujube, decoct in water and take orally. Treats wind-pathogen infiltration causing pain in limbs and joints, generalized numbness, slurred speech, facial paralysis (deviation of mouth and eyes), throat obstruction with phlegm surging, as well as paralysis, difficulty walking, and weakness of the waist and legs.
Another prescription: 8 fen each of May Chang (*Lindera aggregata*), Stiff Silkworm (*Bombyx batryticatus*), White Peony Root (*Paeonia lactiflora*), Dried Tangerine Peel (*Citrus reticulata*), Bitter Orange (*Citrus aurantium*); 5 fen each of Dried Ginger (*Zingiber officinale*), Licorice Root (*Glycyrrhiza uralensis*); 3 fen of Ephedra Herb (*Ephedra sinica*). Add fresh ginger and scallion white, decoct in water and take orally. Treats body pain and loss of appetite during menstruation.