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Whenever an ulcer has matured and ruptured, cold-natured medicines must absolutely not be used. Instead, it is appropriate to strengthen the Spleen and nourish the Stomach, support the interior to expel pus, and warm the Middle Jiao (Middle Burner), so that Qi and Blood become robust, allowing pus to discharge naturally and facilitating healing.

In cases where a sore or carbuncle swells up, becomes hard, and produces thick pus, this indicates Excess Syndrome; dispersing agents that drain pus and support the interior should be used.

In cases where a sore or carbuncle has ruptured but the wound remains clear and fails to close, accompanied by aggregated swelling, pale color, cold muscles and flesh, spontaneous sweating, and sallow complexion, these are signs of severe deficiency of Qi and Blood. The Da Bu Tang (Great Tonifying Decoction) with Fuzi (Aconite Lateral Root) should be used.

In cases where an ulcer presents with soft, slow-healing swelling beneath and thin pus, this indicates Deficiency Syndrome. The Shi Quan Da Bu Tang (Ten Complete Great Tonifying Decoction) should be used.

In cases of ulcers accompanied by fever, loss of appetite, fatigue, reluctance to speak, insomnia, and spontaneous sweating, Bu Zhong Yi Qi Tang (Tonify the Middle and Augment the Qi Decoction) and Nei Bu Huang Qi Tang (Interior-Nourishing Astragalus Decoction) should be used.

After a sore or carbuncle has ruptured, one must strictly avoid using attacking/draining agents, as they damage Qi and Blood and make healing difficult. It is commonly observed that in individuals with robust Qi and Blood, sores tend to have high, red pus, rupture easily, and heal well.

If pain occurs after pus has discharged from a sore or carbuncle, and the pulse is floating and weak, tonification is indicated. Tuo Li Ding Tong San (Support Interior and Stop Pain Powder) and Nei Bu Huang Qi Tang (Interior-Nourishing Astragalus Decoction) should be used.

If the pulse is rapid and full after rupture, accompanied by pain and difficulty in defecation, purgation is indicated. Tuo Li Xiao Du San (Support Interior and Eliminate Toxin Powder) should be used.

For ulcers with fever and a floating, weak pulse, tonification is indicated. If heat predominates in the morning, tonify Qi; if heat predominates in the afternoon, tonify Blood. Bu Zhong Yi Qi Tang (Tonify the Middle and Augment the Qi Decoction) modified or Shi Quan Da Bu Tang (Ten Complete Great Tonifying Decoction) modified should be used.

If there is fever after rupture, loss of appetite, fatigue, and inability to sleep, Huang Qi Ren Shen Tang (Astragalus and Ginseng Decoction) with Suan Zao Ren (Ziziphus Seed) should be used.

For erupted carbuncles or sores, washing with Zhu Ti Tang (Pig Trotter Decoction) followed by applying plasters is applicable.

If fever, irritability, thirst, and craving for cold drinks occur after the eruption of carbuncles or sores, Men Dong Huang Qi Tang (Ophiopogon and Astragalus Decoction) should be used.

Even if the wound closes after significant loss of pus and blood from a sore or carbuncle, tonification is still necessary to restore equilibrium of Qi and Blood. Otherwise, other complications may arise, making treatment difficult.

When a Ding Chuang (Ding Carbuncle/Fixed Carbuncle) first appears, it is urgent to prick it with a needle to bleed. Chan Su Wan (Toad Venom Pill) or Hui Sheng Ding Zi (Life-Returning锭/Plaster) should be inserted into the puncture hole, covered with a plaster, and assisted with Shui Chen Gao (Water-Sinking Plaster).

When a Ding Chuang first arises with abnormal pain and itching, it is urgent to use medicine to induce sweating, thereby expelling toxins from the exterior to prevent them from attacking the Heart. Chan Su Wan (Toad Venom Pill), Fei Long Duo Ming Dan (Flying Dragon Life-Seizing Pill), and Di Ding San (Viola Powder) should be used.

All types of abscesses and swellings contraindicate sweating therapies, except for Ding Chuang, which can be treated with sweating methods. This distinction must not be overlooked.

When a Ding Chuang first appears, symptoms may resemble Cold Syndrome, including aversion to cold, high fever, body stiffness and fatigue, dizziness, and vertigo. Zhui Ding Duo Ming Dan (Chasing Ding and Seizing Life Pill) should be used.

If a Ding Chuang presents with spreading red threads, it is urgent to prick and cut off the thread at its furthest point with a needle. Otherwise, toxins will attack the Heart and Abdomen, becoming incurable. Medicinal application should still be performed on the site.

When a Ding Chuang first appears with itching, moxibustion through garlic slices should be urgently applied to draw out toxins. This is an excellent method. Shen Xian Jiu Ku Dan (Immortal Relief of Suffering Pill) and Wu Sheng San (Five Sages Powder) should be used.

If a Ding Chuang causes irritability and madness, Hu Xin San (Heart-Protection Powder) should be used.

If a Ding Chuang causes fever and irritability, purgation is indicated using Jiu Ku Dan (Relief of Suffering Pill).

If a Ding Chuang spreads uncontrollably, Po Guan Dan (Coffin-Breaking Pill) should be used.

If a Ding Chuang manifests visibly or even before visible symptoms appear, and a nodule forms under the armpit named Hai He Zi (Child Nodule), Chuan Zhu (Penetrating Fixation) therapy should be used. If the Ding Chuang originates internally, accompanied by abdominal pain and vomiting, it is considered incurable.

If a Ding Chuang is painless and the eyes turn black as if seeing firelight, this indicates toxins have entered the interior, and it is incurable.

If human sweat penetrates the skin/meat, and a person consumes it, they may develop a Ding Chuang. One must exercise extreme caution.