Erythema Nodosum
Erythema nodosum (EN) is a painful nodular vasculitis syndrome that occurs most commonly in young women. It is a reactive inflammatory condition affecting the blood vessels of the dermis and the subcutaneous fat, and it commonly appears on the fronts of the lower legs as red or purplish-red nodules. It is a non-suppurative skin condition characterized by nodular erythematous lesions and is described as an autoimmune disease.
In Traditional Chinese Medicine (TCM), erythema nodosum is known as Gua Teng Chan (瓜藤缠), a nodular erythematous skin disease involving cutaneous vasculitis that occurs on the lower limbs. The name refers to the multiple nodules that resemble fruit on vines winding around the shins. The Essential Techniques of External Medicine from the Golden Mirror of Medicine states: “This condition occurs on the lower legs, with lesions appearing in different places. One or two areas may be affected; the top of each lesion resembles an ox’s eye, and the base is diffusely swollen… When the lesions appear around the shins, the condition is called Gua Teng Chan.”
TCM Pattern Identification and Medication Guide
|Common Symptoms
Clinical description:
Nodules suddenly appear in clusters on both lower legs. They are red and feel hot, with a swollen, smooth, shiny surface, and are firm to the touch. They are often accompanied by chills, fever, headache, sore throat, fatigue and weakness, aching joints, poor appetite, hard stools, and dark yellow urine. The tongue is dark red, with a yellow, greasy coating or a white, greasy coating; the pulse is slippery and rapid, or wiry, slippery, and rapid.
In plain language:
- Nodules suddenly appear in clusters on both lower legs. They are red and feel hot, with a swollen, shiny surface, and feel firm to the touch.
- Other symptoms may include chills, fever, headache, sore throat, fatigue and weakness, aching joints, poor appetite, hard stools, and dark yellow urine.
- The tongue appears dark red, with a yellow, greasy coating or a white, greasy coating.
- The pulse feels smooth and somewhat rapid, or tense, smooth, and rapid.
|Treatment Approach
Clinical description:
Clear heat and drain dampness, with supporting measures to unblock the collaterals.
In plain language:
- Aims to clear internal heat and promote the elimination of dampness, potentially easing discomforts such as fever, thirst, a heavy feeling in the body, or difficulty urinating.
- Also aims to support the flow of the meridians and collaterals, potentially easing symptoms such as numbness in the limbs, aching joints, or difficulty moving.
|Related Products
The products below are provided for informational purposes only and do not constitute medical advice or a prescription. Refer to the product packaging and instructions, and use under the guidance of a doctor or pharmacist.
|Common Symptoms
Clinical description:
The skin lesions are dark red and recurrent or persistent. They may be accompanied by joint pain that worsens in cold weather, cold limbs, no thirst, and stools that are not hard. The tongue is pale, with a white or white, greasy coating; the pulse is deep and moderate, or slow.
In plain language:
- The skin lesions are dark red and persist or keep recurring without resolving.
- Joint pain worsens in the cold, and the hands and feet feel cold.
- The mouth does not feel dry, and there may be little desire to drink.
- Stools are not hard, and bowel movements are generally normal.
- The tongue appears pale, with less color than usual.
- The tongue coating is white or white and somewhat greasy.
- The pulse feels deep and slow or moderate when felt under pressure.
|Treatment Approach
Clinical description:
Warm yang and strengthen the spleen, unblock the collaterals, and regulate dampness.
In plain language:
- Aims to warm and support yang and strengthen digestive function, potentially easing discomforts such as feeling cold, cold limbs, poor appetite, bloating, or loose stools.
- Aims to support the flow of the meridians and collaterals and regulate dampness, potentially easing a heavy feeling in the body, aching joints, or numbness in the limbs.
|Related Products
The products below are provided for informational purposes only and do not constitute medical advice or a prescription. Refer to the product packaging and instructions, and use under the guidance of a doctor or pharmacist.
References
- Yang Wenchao. A Modern TCM Literature Review of the Treatment Principles for Erythema Nodosum [D]. Shandong University of Traditional Chinese Medicine, 2012.
- Wang Daobao, Hu Lingli, Yao Gaixian. Observation of the Therapeutic Effects of TCM Pattern-Based Formulas in Treating Erythema Nodosum [J]. People’s Military Surgeon, 2015(4): 427–428.
- Wang Bin, Wang Longchuan. TCM Treatment of Erythema Nodosum [J]. Modern Journal of Integrated Traditional Chinese and Western Medicine, 2002(21): 2158.
- Bi Yanwu. TCM Pattern-Based Treatment of 120 Cases of Erythema Nodosum [J]. Journal of Liaoning University of Traditional Chinese Medicine, 2008(4): 105–106.
- Wu Kuanchao. Reflections on TCM Treatment of Erythema Nodosum [J]. Sichuan Journal of Traditional Chinese Medicine, 1998(6): 46.
- He Shanwu. Reflections on the Diagnosis and Treatment of Erythema Nodosum [J]. Journal of Shaanxi College of Traditional Chinese Medicine, 2010(3): 51–52.
- Yin Huaiyu. On the Diagnosis and Treatment of Erythema Nodosum [J]. Jiangsu Journal of Traditional Chinese Medicine, 1995(4): 41.
- Dong Shizhen, Yan Boxin, Deng Ershou. Antituberculosis Treatment and Etiological Considerations in Erythema Nodosum [J]. Qinghai Medical Journal, 2002(6): 16–17.