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Dr. Xue Lizhai treated Yu Tingqi, a Juren (degree holder), who suffered from Liuzhu (deep-seated abscesses) in the leg for over a year, expelling a small amount of necrotic bone. The patient experienced chills before noon, fever after noon, dry mouth with expectoration of phlegm, and frequent urination. Dr. Xue diagnosed this as a deficiency of the Three Yin meridians of the foot (Liver, Spleen, Kidney). He prescribed Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction) in the morning and Liuwei Dihuang Wan (Six-Ingredient Pill with Rehmannia) base added with Danggui (Angelicae Sinensis Radix), Baishao (Paeoniae Radix Alba), and Wuweizi (Schisandrae Fructus) in the evening. After taking each prescription for more than thirty doses, and applying moxibustion with fermented soybean cakes externally to the affected area, all symptoms gradually improved. Subsequently, he used formulas similar to Shiquan Dabu Tang (Decoction for Tenfold Tonification) to support recovery; due to the patient's caution regarding his illness, he eventually recovered.

Dr. Xue Lizhai also treated a scholar suffering from Fuguju (osteomyelitis/abscess attached to bone). Due to a lack of timely tonification, the wound failed to heal, exuding a small amount of thin pus daily, and later frequently expelling three pieces of necrotic bone. His pulse was rapid but indicated no excess pathogenic factors, signifying a deficiency of Qi and Blood, where the wound formed a sinus tract that could not heal. Dr. Xue applied Wujin Gao (Black Gold Ointment) externally and prescribed Shiquan Dabu Tang internally on a daily basis, leading to recovery.

Wang Tingzhang, a Shangshe (official title), suffered from the same condition for three years without improvement. He exhibited emaciation, difficulty digesting food, coldness in the hands and feet, constipation, and coldness in the yin regions of the extremities. This was diagnosed as Yang Qi deficiency and Cold. Dr. Xue treated him with Buzhong Yiqi Tang, Bawei Wan (Eight-Ingredient Pill, i.e., Jin Gui Shen Qi Wan), and moxibustion on the affected area, resulting in recovery.

A man suffered from Liuzhu in his arm, expelling three pieces of necrotic bone, yet the wound remained unhealed. He presented with fever, thirst, and a floating, large, and choppy pulse, indicating a dual deficiency of Qi and Blood. It was necessary to administer multiple doses of herbs that generate Qi and Blood to preserve his life. However, misled by the belief that "fire toxin had not been fully cleared," he continued using cooling medicines both internally and externally, nearly bringing himself to a critical state before seeking treatment. At that time, his physique was extremely emaciated, and his pulse was even more deficient. Dr. Xue first prescribed Liujunzi Tang (Six-Gentlemen Decoction) added with Chuanxiong (Ligustici Chuanxiong Rhizoma) and Danggui, which gradually improved his appetite over a month. Then, he prescribed Bazhen Tang (Eight-Treasure Decoction) added with Rougui (Cinnamomi Cortex), and after more than thirty doses, the color of the wound turned red. Finally, he switched to Shiquan Dabu Tang and applied moxibustion with Aizi Bing (Aconite Cake) externally. The patient recovered within just one year.

*Yilin Jiyao* (Essentials from the Medical Forest Collection) states: Guju (bone abscess) is a deteriorated stage of Liuzhu. If cooling medicines are used, they will damage the Spleen internally and congeal the Blood externally. The Spleen governs muscles; if Spleen Qi is injured, dietary intake decreases, and muscles fail to grow. Blood constitutes the collaterals; if Blood is frozen by cold, Qi and Blood become weak and stagnant. Therefore, it is appropriate to use methods that regulate and strengthen the Spleen, so that flesh grows naturally and Qi circulates smoothly. There is also Baihu Lijie Feng (White Tiger Joint Bi Syndrome), which may persist cyclically or span several years; self-healing occurs only when the cold toxin and necrotic bone are completely expelled. If the flesh attached to the bone rots, it can be cured; if the main bone rots, it results in lifelong disability. If swelling arises from the hands, feet, or face, accompanied by pain, spreading upward to the neck and joints like beads strung together, this is Wind-Dampness Liuzhu, suitable for treatment with modified Xuxming Tang (Minor Continuation of Life Decoction) and Duhuo Jisheng Tang (Angelica and Sangjisheng Decoction). If there is swelling and pain in both knees, or pain throughout all joints, this is Wind-Dampness Bi, also known as Lijie Feng (Joint-Hopping Wind), suitable for treatment with Fuzi Bawu Tang (Aconite and Eight-Substance Decoction). There are also nodules in the neck, axillae, beside the breasts, or in the soft flesh of the groin, named Shi Yong (Stone Carbuncle), belonging to Cold syndromes. In children, retained phlegm deviating from its pathway may cause nodules in the neck, arms, chest, or back, which are also Cold syndromes; these should all be treated with hot medicinal poultices. All the above conditions originate from the Kidney. The Kidney governs bones; Kidney deficiency leads to cold bones and pathology. Thus, Guju originates from the Kidney because its root lies there. Therefore, using large doses of Fuzi (Aconiti Lateralis Radix Praeparata) to tonify Kidney Qi warms the Kidney, giving the bone vital energy, preventing the abscess from attaching to the bone. (As recorded in ancient texts: For chronic ulcers discharging fine bone fragments, mix Mituoseng (Lead Monoxide) with Tongyou (Tung Oil) to form a paste, apply on silk gauze, and patch the wound; this is excellent.)