The information provided here is not a replacement for a doctor. You shouldn't use it for the purpose of self-diagnosing or self-medicating but rather so you can have a more informed discussion with a professional TCM practitioner.
Carbuncles can be the consequence of several so-called “patterns of disharmony” in Chinese Medicine.
Chinese Medicine sees the body as a system, not a sum of isolated parts. A "pattern" is when the system's harmony is disrupted, leading to symptoms or signs that something is wrong (like carbuncles here). It is similar to the concept of disease in Western Medicine but not quite: a Western disease can often be explained by several Chinese patterns and vice-versa.
A pattern often manifests itself in a combination of symptoms that, at first glance, do not seem necessarily related to each others. For instance here carbuncles is often associated with sores, boils and abdominal pain in the pattern “Toxic Heat”.
Once identified, patterns are treated using medicinal herbs, acupuncture, and other therapies. In the case of carbuncles we’ve identified that a herbal formula called Wu Wei Xiao Du Yin can help treat the patterns behind the symptom.
In Chinese Medicine carbuncles is a symptom for the pattern "Toxic Heat". Below is a small explanation for it with links for more details.
Pulse type(s): Rapid (Shu)
Tongue coating: Yellow coating
Tongue color: Red
Toxic Heat is often treated with Wu Wei Xiao Du Yin, a herbal formula made of 5 herbs (including Honeysuckle Flowers - Jin Yin Hua - as a key herb). Wu Wei Xiao Du Yin belongs to the category of "formulas that clear external abscesses and sores", which might be why it is often recommended for this pattern. Its main action as a formula is: "Clears Heat".
Source date: 1742 AD
Number of ingredients: 5 herbs
Key actions: Clears Heat. Resolves Toxicity. Cools the Blood. Reduces swelling.
Because it is a formula often recommended to treat the pattern 'Toxic Heat' of which carbuncles is a symptom.
Its main actions are: Expels Heat and toxicity and reduces swellings. Cools and reduces Hot swellings if applied topically.
Its main actions are: Clears Heat, resolves toxicity, reduces swelling and disperses Stagnation
Its main actions are: Expels Heat and Fire toxicity. Dispels Damp-Heat in the Lower Burner. Increases lactation. Treats all kinds of inflammations.
Its main actions are: Clears Heat and dispels toxicity. Dispels Wind-Heat derived from an External pathogen. Expels Damp-Heat from the Lower Burner. Relieves Carbuncles.
Because it is a herb specifically indicated to treat carbuncles as can be seen on Swallow-Wort Root's page.
Its main actions are: Cools the Blood and expels Deficient Heat. Clears Heat in the Blood by encouraging urination. Detoxifies when used either internally or externally.