其法取大活蜞二三枚，先以竹节无底者二寸高许安疮头上，少注水于其竹中，放蜞入，
任吮其疮血，出，蜞亦饱胀而死。疮去恶血，亦渐轻愈，随用药治之。有云∶蜞针吮
血，可施于轻小证候，若积毒在脏腑，徒竭其血于外，无益。（愚谓虽用蜞针，仍须按
证施药，则内外兼治亦可已矣。若云徒竭其血于无益，斯言过唉。毒为积血而成，今吮去
其恶血，亦驱其毒之一端也。）
附子为末，唾津和为饼，如三钱浓，安疮上，以艾炷灸之，漏大炷大，漏小炷小，但
灸令微热，不可令痛，干则易之，如咽则止，来日如前再灸，直至肉平为效，仍用前补药作
膏贴之。
豆豉饼专治发背，已溃未溃。用江西淡豆豉为末，唾津和作饼，置患处灸之，饼干，
再用唾津和之。疮大用水和，捣成硬泥，根据疮大小作饼子，浓三分，如已有疮孔，勿覆
孔上，四布豉饼列艾其上灸之，使微热，勿令破肉，如热痛，急易之，日灸三度，先有疮
孔者，孔出汗即瘥。
人有不耐劳，不能食冷，或饮食作胀，大便不实，或口舌常破，生疮，服凉药愈盛，
盗汗不止，小便频数，腰腿无力，或咽津，或呼吸觉冷气入腹，或阴囊湿痒，或手足冷，
或面白，或黧黑，或畏寒短气。以上诸证，
皆属肾虚，非附子不可治。
This method involves taking two or three large *Haemopis* (leeches). First, place a bamboo segment approximately two cun high with the bottom removed onto the sore. Pour a small amount of water into the bamboo, introduce the leeches, and allow them to suck the blood from the sore until they become distended and die. This removes the bad blood from the sore, allowing the condition to gradually lighten and heal, after which medication is applied. It is said that using leeches for bloodletting is applicable only to mild and minor conditions; if toxins are accumulated in the zang-fu organs, merely exhausting blood externally is of no benefit. (I believe that even when using leeches, one must still administer medication according to the syndrome pattern; thus, treating both internally and externally can lead to a cure. To claim that merely exhausting blood is of no benefit is an overly pessimistic view. Toxins are formed by accumulated blood; therefore, sucking out the bad blood is also one way to drive out the toxin.)
Grind *Fuzi* (Prepared Aconite Root) into powder, mix with saliva to form a cake about three qian thick, and place it on the sore. Moxibustion is performed using moxa cones: use larger cones for larger sinuses and smaller cones for smaller ones. The area should be moxibusted until slightly warm, but not painful. Replace the cake when it dries. If swallowing becomes difficult, stop. Repeat the procedure the following day as before, until the flesh levels out, which indicates efficacy. Then, apply a plaster made from the aforementioned tonifying herbs.
The *Douchi* (Fermented Soybean) cake is specifically used to treat back carbuncles (*Fabei*), whether ulcerated or unulcerated. Use light-colored fermented soybeans (*Dan Douchi*) from Jiangxi, grind them into powder, mix with saliva to form a cake, and place it on the affected area for moxibustion. If the cake dries, re-moisten it with saliva. For larger sores, mix with water and pound into a hard paste, forming cakes according to the size of the sore, about three fen thick. If there is already an opening, do not cover it; instead, arrange the *Douchi* cakes around the opening and place moxa cones on top for moxibustion. Keep the area slightly warm without breaking the skin. If heat pain occurs, replace immediately. Perform moxibustion three times daily. In cases with pre-existing openings, healing occurs when sweat discharges from the opening.
Some individuals cannot tolerate fatigue or cold foods, experience abdominal distension after eating, have loose stools, suffer from frequent oral and lingual ulcers, find that symptoms worsen with cooling medicines, experience persistent night sweats, frequent urination, weakness in the waist and legs, feel cold air entering the abdomen when swallowing saliva, have damp and itchy scrotums, cold hands and feet, pale complexion, dark complexion, aversion to cold, or shortness of breath. All the above syndromes belong to Kidney Deficiency (*Shen Xu*) and can only be treated with *Fuzi* (Prepared Aconite Root).