其取油法∶以有油老松柴截二、三寸长，劈如灯心粗，用麻线扎把，如茶杯口大，再用
水盆
一个，内盛水半盆，以碗一只坐于水盆内，用席一块盖于碗上，中挖一孔如钱大，再以扎好
松把，直竖放于席孔中间，以火点着，少时，再以炉灰周遭上下盖紧，勿令走烟，如走烟，
其油则无，候温养一、二时，其油尽滴碗内，去灰席，取出听用，一名沥油。
治疥疮久远不愈，百药不效，以此油新浴后擦之，或加白矾末少许和擦，更妙。
即 树子油 枯饼
乃 树子油也。豫省闽粤皆食茶油，而不知为 树子油，俗呼茶油，实非茶子之油也。
煎熬
不熟，食之令人泻。
味甘性凉，气腥色绿，润肠清胃，杀虫解毒，不宜生食，燃灯益目，抹发解 。
药性考云∶饼能浣衣，除垢最洁，烧灰敷疮，亦可下积，洗风瘙痒，可用皮叶。
经验广集，有取杉木油法∶用纸糊碗面，以杉木屑堆碗上，取炭火放屑顶烧着，少时火
将近
纸，即用铁箸抹去，烧数次，开碗看，即有油汁在碗内。
治一切顽癣，先用穿山甲刮破，用羊毛软笔蘸油涂上，甚加疼痛，停半日再涂，癣自结
痂而
愈。如已破者，不必刮，癣药极多，都不及此真神方也。
清明日插在屋檐下枯柳枝朝南者，入药。 物类相感志∶清明杨柳，能止酱醋之潮溢。
甜疮 济世良方以清明插过柳枝（烧存性）一钱，银朱七分，共研，再入飞矾一分，敷之。
小儿胎火不尿济急方∶凡初生小儿小便不通，乃是胎中热毒未化，不可用寒凉金石之剂，只
须取清明插檐柳枝朝南者一握，煎汤服之，即尿。大人小便闭，服之亦效。 治尿梗，周子
象方∶用清明插屋檐下枯柳一大把，折碎煎汤，倾坐桶内，被围住熏，片时即通，再内服。
白浊∶卢复芷园臆草∶清明所插柳条煎之，治白浊，盖势为肝苗，柳为卯木，同类也；
混浊
之色，清明之气，相待也，用药恰好有如此。
下痢后成腌鱼水，此险症也。慈惠小编∶用清明人家插檐柳，取叶来煎汤，下如止可救。
起
病不多日，下腌鱼水，年少者，方可治，老者难治。少者劳伤之症，肉而化成血水，平和调
理，可以挽回十分之二三；老者血气久成衰弱，故成此症，神仙难治。
取油的方法：选取含有油脂的老松木柴，截成二、三寸长，劈成如灯心草粗细，用麻线扎成一束，直径如茶杯口大小。再准备一个水盆，内盛半盆水，将一只碗坐于水盆内，用一块席子盖在碗上，中间挖一个如铜钱大小的孔。将扎好的松木束竖直放入席孔中间，点火点燃。片刻后，用炉灰在四周上下严密覆盖，防止烟雾逸散；如果烟雾逸散，就得不到油了。待温度适宜，养护一两个时辰，油脂就会全部滴入碗中。去掉灰烬和席子，取出备用，这种油又名“沥油”。
治疗经久不愈、百药无效的疥疮，可在沐浴后用此油擦拭，或加入少许白矾末调和后擦拭，效果更佳。
即树子油枯饼。这是树子油榨油后的残渣。河南、福建、广东等地都食用茶油，但不知道这就是树子油，俗称为茶油，其实并非茶籽之油。若煎熬不熟，食用会导致腹泻。其味甘、性凉，气味腥、色绿，能润肠清胃，杀虫解毒，不宜生食；燃烧照明有益眼睛，涂抹头发可解脱发之疾（注：原文此处可能有缺字或通假，通常指乌发或治脱发，依文意译为解脱发/护发相关之意，结合语境“抹发”常指护发或治秃，暂译为解脱发困扰）。
《药性考》记载：饼渣能洗衣，去垢最洁净；烧成灰敷疮，也可消除积滞；洗治风邪瘙痒，可用树皮和树叶。
《经验广集》中记载有取杉木油的方法：用纸糊住碗口，将杉木屑堆在碗上，取炭火放在木屑顶端点燃。片刻后，当火快要烧到纸时，立即用铁筷子抹去余火。烧数次后，打开碗看，碗内就有油汁。
治疗一切顽固癣症，先用穿山甲刮破患处，用羊毛软笔蘸油涂抹，会感到剧烈疼痛，停止半天后再涂，癣症自然结痂痊愈。如果皮肤已经破损，不必刮破，治癣药物极多，都不及此真神方。
清明日插在屋檐下的朝南枯柳枝，可用于入药。《物类相感志》记载：清明时的杨柳，能防止酱醋受潮溢出。《甜疮济世良方》用清明插过的柳枝（烧存性）一钱，银朱七分，共同研磨，再加入飞矾一分，外敷治疗。
《小儿胎火不尿济急方》：凡是初生婴儿小便不通，乃是胎中热毒未化，不可使用寒凉金石类药物，只需取清明插在屋檐下朝南的柳枝一握，煎汤服用，即可排尿。成人小便闭塞，服用也有效。
治疗尿潴留，《周子象方》：用清明插在屋檐下的枯柳一大把，折断捣碎煎汤，倒入坐桶内，让人坐在上面熏蒸，片刻即可通畅，然后再内服。
白浊：卢复《芷园臆草》：清明所插柳条煎煮，治疗白浊，因为势为肝之苗窍，柳属卯木，同类相应；混浊之色与清明之气，相互对待，用药恰好如此巧妙。
下痢后排出如腌鱼水般的液体，这是险症。《慈惠小编》：用清明时节人家插在屋檐下的柳叶，煎汤服用，若下利如腌鱼水般停止则可救活。发病不多日，出现腌鱼水下利，年少者方可治愈，年老难治。年少者多为劳伤之症，肌肉化为血水，通过平和调理，可以挽回十分之二三的生命；年老则气血久已衰弱，故形成此症，神仙也难治愈。
The method for extracting oil: Select old pine firewood containing resin, cut it into segments two to three cun long, split them into strands as thick as lamp wicks, and bind them into a bundle with hemp thread, with a diameter similar to that of a teacup. Prepare a water basin filled halfway with water, place a bowl inside the basin, cover the bowl with a mat, and dig a hole in the center of the mat the size of a coin. Insert the bound pine bundle vertically into the hole in the mat. Ignite the top. After a short while, cover the surroundings thoroughly with stove ash from top to bottom to prevent smoke leakage; if smoke escapes, no oil will be obtained. Allow it to cool and settle for one or two shichen (2-4 hours). The oil will drip completely into the bowl. Remove the ash and mat, and take out the oil for use. This oil is also known as "Li You" (Dripping Oil).
It treats chronic scabies that has persisted for a long time and resisted all other medicines. Apply this oil after a fresh bath, or mix with a small amount of alum powder for application, which is even more effective.
This refers to the cake residue of Camellia oleifera oil. In Henan, Fujian, and Guangdong provinces, people consume tea oil but are unaware that it is actually Camellia oleifera oil; colloquially called tea oil, it is not derived from Camellia sinensis seeds. If not cooked thoroughly, ingestion causes diarrhea. Its taste is sweet, nature is cool, odor is fishy, and color is green. It moistens the intestines, clears the stomach, kills parasites, and detoxifies. It should not be eaten raw. Burning it for lamps benefits the eyes, and applying it to hair helps resolve hair loss issues.
*Yao Xing Kao* states: The cake residue can be used for washing clothes, removing dirt most cleanly; burned to ash and applied to sores, it can also eliminate accumulation; washed with bark and leaves to treat wind-induced itching.
*Jing Yan Guang Ji* records a method for extracting fir wood oil: Cover the mouth of a bowl with paper, pile fir wood shavings on top of the bowl, and place burning charcoal on the top of the shavings to ignite them. When the fire is about to reach the paper, immediately wipe it away with iron chopsticks. Repeat this several times. Open the bowl to find oil juice inside.
To treat all types of stubborn tinea (ringworm), first scrape the affected area with pangolin scales, then apply the oil using a soft wool brush. It causes severe pain initially; wait half a day before reapplying. The tinea will naturally form a scab and heal. If the skin is already broken, do not scrape. There are many remedies for tinea, none as miraculous as this true divine prescription.
Willow branches from dead willow trees inserted under eaves on Qingming Festival, facing south, are used in medicine. *Wu Lei Xiang Gan Zhi* notes: Willow and catkins during Qingming can prevent soy sauce and vinegar from becoming damp and overflowing. *Tian Chuang Ji Shi Liang Fang* uses one qian of willow branches inserted during Qingming (charred but retaining substance), seven fen of silver cinnabar, ground together, plus one fen of sublimated alum, applied externally.
*Xiao Er Tai Huo Bu Niao Ji Ji Fang*: For newborn infants unable to urinate, caused by untransformed heat toxins in the womb, cold and mineral-based medicines should not be used. Instead, take a handful of willow branches inserted under eaves facing south on Qingming Festival, decoct in water, and administer orally to induce urination. It is also effective for adults with urinary retention.
Treatment for urinary obstruction, *Zhou Zi Xiang Fang*: Use a large bunch of dead willow branches inserted under eaves on Qingming Festival, break and crush them, decoct in water, pour into a sitz bath tub, and fumigate the perineal area while sitting. Urination usually resumes shortly after, followed by oral administration.
Leukorrhea (*Bai Zhuo*): Lu Fu's *Zhi Yuan Yi Cao*: Decoct willow twigs inserted on Qingming Festival to treat leukorrhea. This is because discharge originates from the Liver meridian, and willow belongs to Wood (Mao branch), sharing the same elemental nature; the turbid color corresponds to the clear energy of Qingming, making the herbal selection apt.
Diarrhea resulting in excrement resembling pickled fish water is a critical condition. *Ci Hui Xiao Bian*: Decoct leaves from willow branches inserted under eaves by households during Qingming Festival. If the diarrheic excretion stops after taking this, the patient can be saved. This condition occurring shortly after onset, characterized by pickled-fish-like stool, is curable in young patients but difficult in the elderly. Young patients often suffer from labor-induced injury where muscle transforms into bloody fluid; mild regulation can recover 20-30% of vitality. Elderly patients have long-standing Qi and Blood deficiency, leading to this syndrome, which is difficult even for immortals to cure.