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Furthermore, there are various conditions such as Red Thread Ding (Hong Si Ding), Wool Ding (Yang Mao Ding), and Dark Ding (An Ding).

The so-called "Five Dings" refer to conditions formed by the toxic fire of the Heart, Liver, Spleen, Lung, and Kidney Zang organs.

Flame Ding (Huo Yan Ding) mostly arises on the lips, mouth, and between the joints of the palms and fingers. Initially, a small red-yellow blister appears, accompanied by itching, pain, and numbness. In severe cases, alternating chills and fever, dizziness, blurred vision, mental restlessness, irritability, and confused speech occur; this is caused by the toxic fire of the Heart Meridian.

Purple Swallow Ding (Zi Yan Ding) mostly arises in the bone joints of the hands and feet, and between the tendons and bones of the waist and flanks. It forms purple blisters initially, which rupture the next day bleeding serosanguineous fluid. The toxin spreads along the tendons causing bone rot, resulting in severe pain. In heavy cases, red eyes, obscured vision, cyanotic nails, stiff tongue, coma, somniloquy, and startlefulness occur; this is caused by the toxic fire of the Liver Meridian.

Yellow Drum Ding (Huang Gu Ding) mostly arises at the corners of the mouth, cheeks, upper and lower eyelids, and the center of the face. It begins as a yellow blister, bright and moist, surrounded by red erythema. Upon onset, it feels numb and itchy, with the area feeling tight, urgent, hard, and rigid. In severe cases, nausea, vomiting, limb numbness and pain, alternating chills and fever, and vexation with thirst occur; this is caused by the toxic fire of the Spleen Meridian.

White Blade Ding (Bai Ren Ding) mostly arises in the nostrils and both arms. It begins as a white blister with a hard apex and protruding root, presenting with numbness, itching, and pain. Upon rupture, it exudes fatty fluid, prone to putrefaction and sinking of the toxin. In severe cases, cheek damage, scorched throat, coughing up phlegm, nasal flaring, and rapid breathing occur; this is caused by the toxic fire of the Lung Meridian (treatment is the same as Nasal Ding).

Black Ding (Hei Ding) mostly arises in the ear canals, tooth gaps, and soft flesh in remote areas of the chest, abdomen, waist, and kidneys. It begins as black spots or purple blisters. The toxin invades the skin and gradually attacks the muscles, becoming stubbornly hard like a nail, with pain penetrating to the bone marrow. In severe cases, cyanosis of hands and feet, fright palpitations, heaviness and lethargy, deep soft depressions, and protruding eyeballs occur; this is caused by the toxic fire of the Kidney Meridian (see Ear Ding for detailed treatment).

Red Thread Ding (Hong Si Ding) mostly arises on the palms and between various bone joints. Initially resembling a small sore, red threads gradually appear and ascend to the arm, accompanied by alternating chills and fever. Severe cases involve nausea and vomiting. If treatment is delayed, the toxin will attack the heart and abdomen, leading to untreatable conditions. Immediately locate the end of the red thread, puncture it with a needle to bleed, then puncture the initial sore. Apply Chan Su Pill (Toad Venom Pill) by rubbing it into the wound, and cover with Wan Ying Gao (Ten Thousand Responses Plaster). For mild cases, applying Ba Ding San (Ding-Extracting Powder) suffices. Internally administer Huang Lian Jie Du Tang (Coptis Decoction for Resolving Toxicity), adding 1.5 qian of Sheng Da Huang (Raw Rhizoma Rhei Preparata) and five Cong Tou (Scallion Heads), decocted and taken orally. Urgently check if there is a single red hair among the scalp hairs; if found, pluck it out immediately.

Wool Ding (Yang Mao Ding) initially presents with aversion to cold and fever, resembling Shang Han (Cold Damage). One must first examine the anterior and posterior chest for purple-black spots or rash-like lesions. Immediately puncture with a needle and scrape out material resembling wool, which indicates the Ding seed. Puncture several points on the anterior and posterior chest, apply powder made from ground Hei Dou (Black Soybean) and Qiao Mai (Buckwheat), and internally administer Wu Wei Xiao Du Yin (Five-Ingredient Decoction for Clearing Toxicity) to induce sweating, followed by Hua Ding Nei Xiao San (Ding-Dissolving Internal Resolution Powder). Mild cases use the Ding-extraction method; severe cases follow the aforementioned internal treatment protocols.

Additionally, an emergency formula for Wool Ding: Initially, a single black dot appears with subtle traces containing several long hairs, triggering chills and fever and extreme discomfort. The toxin easily attacks the heart, often causing syncope and death. The symptoms resemble Shang Han; misprescribing dispersing agents renders it incurable. Exercise utmost caution! Treatment: Strike the chest three to four times with a copper mirror. Several long hairs should emerge following the mirror's light, curing the condition. If a copper mirror is unavailable, use mud from a wine jar lid or yellow clay. Mix with water to a suitable consistency, forming a sticky ball like rice dough. Roll this mud ball over the chest to extract the hairs. Then, decoct 1 liang of Zi Hua Di Ding Cao (Viola Yedoensis Herb) in water for oral administration, and apply the dregs to the affected area for cure.

Dark Ding (An Ding): Before onset, sudden indurated swelling occurs in the axilla, diffuse without a head. Subsequently, the scrotum and testicles swell prominently, resembling tendon knots. The body exhibits chills and fever, tendon and vessel spasms, and pain in the swollen area. Treatment: Acupuncture and moxibustion are contraindicated. First, dissolve Chan Su Pill (Toad Venom Pill) in the mouth, rinse with cold water to remove toxic saliva, then swallow three pills wrapped in chewed 3-cun Bai Cong (White Scallion Stalk), taken with Huang Jiu (Yellow Wine). Cover with blankets to induce sweating. If sweating does not occur, drink hot wine to promote it. If still no sweat, it indicates stagnation of toxic heat. Urgently employ Pi Li Huo Fa (Thunder Fire Method): Place heated large stones in a ceramic bowl set within a bucket, quench the stones with vinegar. Cover the affected area over the bucket, wrap tightly with thick clothing to prevent steam leakage. As heat diminishes, add more red-hot stones and quench with vinegar, ensuring steam penetrates until sweating occurs, reducing the toxin by half. Then, prepare pills from 1 liang of Da Huang (Radix et Rhizoma Rhei) and 3 qian of Bai Zhi (Radix Angelicae Dahuricae) finely powdered. Take 3-4 qian per dose, delivered with decoction of three Cong Tou (Scallion Heads) in wine. Cover with blankets to induce sweating; efficacy is seen upon bowel movement.

Internal Ding (Nei Ding): Initially presents with chills and fever, gradually progressing to abdominal pain. Within a few days, a lump suddenly swells up, resembling a Ju Ji (accumulation-mass) pattern. Treatment is the same as Dark Ding.

Both Dark Ding and Internal Ding are easily overlooked by people and are difficult to distinguish; do not mistakenly treat them as Shang Han or miscellaneous diseases. If jaw stiffness occurs at onset, urgently grind 3-5 Chan Su Pills (Toad Venom Pills) in Cong Tou (Scallion Head) decoction and force-feed. Sudden death is often due to Ding toxicity. Urgently illuminate the entire body with a lamp; if small sores are found, they indicate Ding toxin. Perform urgent moxibustion, and urgently administer Duo Ming Dan (Life-Snatching Pill) or Chan Su Pill (Toad Venom Pill) dissolved in water for force-feeding. Recovery is possible, followed by the aforementioned treatments.