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The pus of the carbuncle has already ulcerated and broken. However, due to blockage by accumulated pus preventing smooth discharge, combined with the luxurious lifestyle of the wealthy and physical inconveniences of women, squeezing out the pus is impossible. Consequently, the pathogenic factor stagnates, causing swelling. In such cases, the bamboo tube suction method should be employed to suck out the pus from within, thereby draining the toxicity. There are also instances where the pus is sucked out orally, relieving pain and allowing the toxicity to settle naturally; this demonstrates the benevolence of surgeons. As the ancients said, "A physician's heart to cut flesh from one's own thigh for the patient" is extremely rare.

Whenever a carbuncle manifests, it inevitably involves severe pain, which arises from external pathogenic influences. Pathogens such as wind, cold, summerheat, and dampness can all cause pain. The Classics state: Cold patterns require warming; heat patterns require clearing; damp patterns require drying; dryness patterns require moistening; deficiency patterns require tonifying; excess patterns require purging; obstruction patterns require unblocking; incontinence patterns require astringing; wind patterns require dispersing; erosion patterns require guiding out; and disharmony of Ying and Wei requires regulating. All these depend on the Five Flavors and Five Qi of herbs, their warm or cool properties, and the critical point of symptomatic treatment. Pain relief can be miraculous; does it rely solely on Frankincense (Ruxiang) and Myrrh (Moyao)?

The condition of carbuncles is no trivial matter; it marks the boundary between life and death and is a dangerous situation requiring utmost caution and never being taken lightly. One must preserve life, avoid exposure and dim environments, be cautious regarding the Seven Emotions (joy, anger, worry, overthinking, grief, fear, and fright), forbid dietary indulgences, purify the mind and spirit, maintain tranquility and simplicity, restrain sexual desire, and avoid ten types of foul airs. These include the qi of childbirth, newlywed couples, wine, musk, fishy smells, mutton odor, and other turbid odors that provoke the condition; running, labor, shouting, and responding that provoke it; the wild behavior of base relatives and friends that provoke it; the pulling and traction during respectful etiquette and movements that provoke it; emotional discussions that provoke it; indiscriminate use of prescriptions and drugs that provoke it; and disputes and gossip that provoke it. Regarding toxic substances from exotic birds and beasts, one should consume millet porridge and vegetables. Such strict adherence to care would surely ensure peace.

"Xiao" (Dissolution) means extinguishing, i.e., eliminating the morphological symptoms. The Classics state: "All pain, itching, carbuncles, and sores belong to Heart Fire." Fire corresponds to the Li Trigram in the Eight Trigrams. Li is characterized by Yang on the outside and Yin on the inside. Internal Yin stagnation inevitably attacks outward. Treatment should employ internal dissolution to cut off the source and clear the interior, preventing outward eruption; hence it is called "internal dissolution." This method is applied when symptoms are just beginning and slightly felt. Immediately, decoctions should be taken internally, using herbs such as Coptidis Rhizoma (Huanglian), Rhei Radix et Rhizoma (Dahuang), Natrii Sulfas (Mangxiao), and Glycyrrhizae Radix et Rhizoma cum Stimulis (Gancao Jie) to dredge the source and cut off the toxicity. If the morphological symptoms have fully formed, this method cannot be used.