Skin inflammation

Understanding Skin inflammation

The classical literature frames skin inflammation as an exchange between internal organs and external factors, with each organ contributing a different quality to the inflamed skin.

Damp-Heat gives oozing, crusted, weeping lesions with yellow discharge, a heavy body and a sticky taste. Heat in the Blood gives bright red hot papules and patches that appear suddenly, with intense itch worse with warmth and thirst for cold drinks.

Dry flaky skin with intense night itch, rashes that come and go, and a pale complexion are read as Blood deficiency with external wind. Dull oozing lesions that are not intensely red, with bloating and loose stools, are read as Spleen deficiency with dampness.

Chronic red, dry, finely scaling skin with night sweats, warm palms and a dry mouth is read as Yin and Blood deficiency. The classical literature treats this as the depleted end of long-standing inflammation.

Four mechanisms do most of the work. Wind brings an itch that moves and arrives suddenly, Dampness leaves the surface weeping, oozing and heavy, Heat reddens, burns and speeds everything up, and Dryness makes it scaly, cracked and tight. They combine in recognisable ways: Dampness with Heat gives a moist hot itch, Wind with Dryness gives a flaky itch with little redness, and long-standing Heat eventually consumes the Blood and Yin that would have kept the skin supple.

The organs behind those mechanisms are the Lungs, which rule the surface and its barrier, the Spleen, which manages fluids, the Liver, which stores and moves Blood, and the Heart, which houses the spirit and drives heat and redness. A rash that erupts after a stressful week speaks of the Liver and the Heart, one that weeps and flares with rich food speaks of the Spleen, and a dry thickened rash that itches at night speaks of Blood that can no longer nourish the surface. The tongue and pulse settle the question, with a red tongue and a yellow greasy coat supporting Damp-Heat, a pale thin tongue supporting Blood Deficiency, and a red tongue with little coat supporting Yin Deficiency.

How it connects

Skin inflammation rarely travels alone. In TCM the Lung governs the skin and body hair, so when the Lung is weakened by Wind-Heat or Damp-Heat the skin often shows the first signs, and allergic rhinitis and asthma frequently accompany dermatitis because they share a root of Lung Qi disharmony and latent Dampness: the same pathological fluid that congests nose and bronchi can seep into the skin and cause oozing, itchy lesions. Anxiety and insomnia often cluster with it too. When Heat in the Blood or Damp-Heat agitates the Heart Shen the mind becomes restless, sleep fragments and itching intensifies at night, and the frustration of chronic skin discomfort further fuels Liver Qi stagnation, which generates more Heat, a cycle that TCM breaks by cooling the Blood, soothing the Liver and calming the Shen together.

How it is assessed

The practitioner distinguishes wet from dry, hot from dull, and acute from chronic.

What a practitioner looks for

• Moisture: oozing and crusting suggest Damp-Heat; dryness and scaling suggest deficiency.
• Colour: bright red suggests heat; dull red or pale suggests deficiency or dampness.
• Duration: sudden onset suggests excess; chronic finely scaling skin suggests Yin and Blood deficiency.
• Systemic signs: fever, widespread blistering or pus-filled blisters need urgent review.

The practitioner first takes a history of the eruption: when it began, whether it appeared in one step or crept, how it looked at the start, and what makes it worse. Then comes the examination of the skin itself, followed by the tongue and pulse, which decide between patterns that can look alike on the surface. The same redness can be heat that needs clearing or deficiency heat that needs nourishing, and the wrong choice makes the skin worse.

Sudden bright red hot papules that itch more with warmth or stress, with a red tongue tip, a thin yellow coat and a rapid pulse, are read as Heat in the Blood. Lesions that weep, crust and feel heavy and sticky, with a yellow greasy coat and a slippery rapid pulse, are read as Damp-Heat, usually against a background of rich food or humid weather. Dull oozing lesions that are not intensely red, with bloating, loose stools and fatigue, a pale swollen tongue with teeth marks and a slow or deep pulse, are read as Spleen Deficiency with Dampness.

Thickened scaly skin of long standing that itches at night, with a pale thin tongue and a thin or wiry pulse, is read as Blood Deficiency with External Wind, where the surface is undernourished and open to Wind. Chronic redness with fine scaling, night heat or sweats, a red tongue with little coat and a thin rapid pulse, points to Yin and Blood Deficiency, the depleted end of a long inflammation.

TCM patterns in Skin inflammation

Five patterns are described, and they trace the same inflammation from its hot wet beginning to its dry depleted end. Damp-Heat and Heat in the Blood are the acute, excess pictures, one wet and heavy, one bright and sudden. Blood Deficiency with External Wind and Spleen Deficiency with Dampness are the recurrent middle ground, one dry and itchy, one dull and oozing. Yin and Blood Deficiency is the late picture, when years of inflammation have used up the moisture that would have kept the skin calm. Most people move between two of these rather than sitting neatly in one, so the same person can be wet and hot during a flare and dry and scaly a month later. The practitioner decides which is leading now, treats that, and adjusts as the skin shifts, because a formula that suits an acute phase will not suit the chronic one.

Treatment approach

How the tradition treats skin inflammation, with the herbs, formulas and points used for it.

Principles

• Clear heat and drain dampness while the skin is wet and inflamed.
• Cool the Blood in sudden bright red eruptions.
• Nourish Blood and Yin once the skin has become dry and finely scaling.
• Protect the barrier throughout, with emollients regarded as part of care.
• The root and the surface are treated at once. Internal formulas clear Heat and Dampness, cool the Blood, nourish Blood and Yin, or strengthen the Spleen according to the pattern, while washes, soaks and ointments made with herbs such as Bai Xian Pi and Di Fu Zi settle the itching and dry the oozing directly. Points are chosen to match: Quchi (LI-11) clears heat from the skin, Xuehai (SP-10) cools the Blood and Zusanli (ST-36) strengthens the Spleen so that Dampness does not return. Mixed pictures are the rule rather than the exception, and the emphasis shifts as a wet acute phase gives way to a dry chronic one.

Herbs used

Formulas

• Long Dan Xie Gan Tang
• Dang Gui Yin Zi
• Wei Ling Tang
• Zuo Gui Yin

Acupoints

• LI-11 (Quchi)
• SP-9 (Yinlingquan)
• SP-10 (Xuehai)
• ST-40 (Fenglong)
• SP-6 (Sanyinjiao)
• LI-4 (Hegu)
• GB-20 (Fengchi)
• LR-3 (Taichong)
• zhongwan-ren-12
• ST-36 (Zusanli)
• KI-3 (Taixi)
• BL-18 (Ganshu)

What to expect

• Acute damp heat is described as settling within one to two weeks.
• Chronic dry inflammation takes months and is managed rather than cured.
• Relapse is common if the internal pattern and triggers are not addressed.
• An acute hot eruption usually settles within a fortnight, while chronic dry eczema can take four to eight weeks before a real shift appears and then keeps improving over months. Progress is uneven, and a short flare during treatment is not a failure, particularly when a wet phase is drying up. The formula is adjusted as the skin changes, and once it is stable the visits are spaced out with a maintenance plan for the seasons when it usually flares.

Safety and when to get help

For anything severe, sudden or spreading quickly, read when a skin problem needs urgent care.

Cautions

• Do not stop prescribed topical or systemic treatment abruptly.
• Strong topical preparations on broken skin need advice.
• Long-term internal herbs should be supervised with liver function checked where indicated.

Using this alongside conventional care

• TCM is described as complementary to conventional care: emollients and prescribed topical treatment continue alongside herbs and acupuncture.
• Creams and herbal treatment can run in parallel, with topical steroids and emollients applied at a different time of day from a herbal wash so that the two do not interfere. Oral immunosuppressants, biologics and antihistamines are never stopped abruptly; they are tapered with the dermatologist as the skin improves. Dang Gui and Chi Shao can interact with anticoagulant or antiplatelet drugs, and herbs that clear Heat may lower blood pressure or blood sugar a little, so those on related medication need monitoring. Keep both practitioners informed of everything in use.

Diet and lifestyle

• Avoid deep-fried, spicy and sugary food and excess dairy, and favour light cooked meals.
• The general principle is to avoid what generates Dampness and Heat: deep-fried food, sugar, very spicy dishes and rich dairy. Favour lightly cooked vegetables, moderate whole grains and cooling moistening foods such as mung beans, cucumber, pear and leafy greens, with warm water or mild herbal teas through the day, and eat at regular times rather than in one large meal. Where the pattern is one of deficiency, add congee, bone broth and modest amounts of good quality meat or eggs. For Damp-Heat keep dairy and fried food out, for Heat in the Blood avoid alcohol and hot spices, and for Blood or Yin Deficiency favour moistening foods over drying pungent ones.

If you are pregnant

Pregnancy draws the mother's Blood and Yin downward to nourish the fetus, which leaves the skin drier and more exposed to Heat and Wind, and Heat in the Blood or Blood Deficiency with External Wind can worsen. Herbs that move Blood strongly or cool it harshly, Da Huang and Tao Ren among them, are avoided because they may stimulate the uterus. Modified formulas are used under professional guidance, acupuncture is a good first option, especially in the first trimester, with Xuehai (SP-10) and Quchi (LI-11) used cautiously and lower abdominal and sacral points avoided, and washes with Bai Xian Pi or Di Fu Zi relieve itching without systemic risk.

If you are breastfeeding

Topical herbal preparations are generally safe while feeding because absorption is minimal. If internal herbs are needed, bitter-cold herbs that pass into milk and can cause diarrhoea or colic, such as Huang Lian and Long Dan Cao, are used sparingly, and milder heat-clearing herbs are chosen instead. A Damp-Heat or Blood Heat flare often responds to a brief low-dose course of Long Dan Xie Gan Tang in modified form, stopped once the acute phase passes. Acupuncture remains safe throughout and does not enter the milk.

If treating a child

In children the commonest picture is Spleen Deficiency with Dampness, because an immature Spleen struggles to transform fluids, and the result is crusted weepy patches in the limb folds and on the cheeks. Young children cannot describe symptoms, so the practitioner relies on the rash, on a tongue that is usually pale and swollen under a white greasy coat, and on sleep broken by itch. Doses are about a quarter to a half of the adult amount, modified Wei Ling Tang is a common formula, washes with Bai Xian Pi or Di Fu Zi dry the lesions, and acupressure or paediatric tuina at Pishu (BL-20) and Zusanli (ST-36) can replace needles.

If treating an elderly patient

In older adults the inflammation is usually chronic and dry, intensely itchy, and Yin and Blood Deficiency is the pattern that predominates, so lesions are scaly rather than weepy and the itch is worse at night and in winter. Multiple medications make interaction checks essential, since anticoagulants are potentiated by Dang Gui and blood pressure can be affected by Gan Cao. Gentle nourishing formulas such as Dang Gui Yin Zi are used at about two thirds of the adult dose with Sanyinjiao (SP-6) and Taixi (KI-3) to rebuild Yin and Blood, while harsh drying or cooling herbs are left out, and the response is slower but often lasting.

Urgent-sign guidance is based on standard sources: NHS anaphylaxis, NHS cellulitis, NHS Stevens-Johnson syndrome, NHS melanoma.

Related conditions

Conditions that often coexist with skin inflammation or share its patterns.

Evidence

The evidence is moderate and comes chiefly from atopic eczema. A Cochrane review of 28 randomised trials with over 2,300 participants found some herbal preparations improved symptom severity and quality of life compared with placebo, while rating the evidence low to moderate because of methodological limitations. A meta-analysis of 11 trials found acupuncture significantly reduced itch intensity.

The 2019 meta-analysis behind the acupuncture figures pooled eleven trials and over a thousand patients and found itch intensity significantly reduced against sham acupuncture or conventional care, with no serious adverse events, though most trials were small and blinding was unclear. Almost all of this work has been done in China, and acupuncture protocols differ so widely between studies that firm conclusions are difficult. The overall position is a plausible and relatively safe adjunct, with high-quality international evidence still developing.

Studies often cited

PubMed records for the TCM evidence

Real PubMed records for the TCM clinical evidence discussed above, selected by condition name and title relevance. They are references, not proof of benefit.

• Microbial functions in skin inflammation: a Mendelian randomization study.. AMB Express, 2026. PMID: 42463567.
• The role of short-chain fatty acids in inflammatory skin diseases.. Frontiers in microbiology, 2022. PMID: 36817115.

Classical record