Have you ever been kept awake at night by recurring eczema with intense itching? Why does this skin condition always seem to "heal and then flare up again, and when it flares up, it itches"? From the perspective of Traditional Chinese Medicine (TCM), eczema is not merely a skin inflammation, but may be an external manifestation of intermingled "dampness pathogen" and "heat toxin" within the body. Many friends ask: why do symptoms recur again and again even after applying ointment? Behind this may lie a deeper need for constitutional regulation—TCM holds that the skin is a mirror of the state of the zang-fu organs, and the papules, vesicles, and erosions on the skin surface often reflect an imbalance in fluid metabolism and the movement of qi and blood within the body.
Recurring eczema with intense itching—what factors are actually related to it? TCM believes that eczema is mostly associated with "spleen deficiency with exuberant dampness." When the spleen and stomach's transportation and transformation functions become impaired, water-dampness accumulates internally, stagnates and transforms into heat; the damp-heat pathogen travels along the meridians and erupts outward to the skin, producing papules, vesicles, and unbearable itching. Have you noticed that eczema is more prone to flare up during damp and muggy seasons or after eating spicy and greasy foods? This is precisely a typical signal of internally generated damp-heat. From the perspective of etiology, the causes of eczema can be divided into external and internal factors. External factors are mostly invasion of the skin by pathogens such as wind, dampness, heat, and toxin—for example, prolonged residence in damp places, exposure to wind after sweating, or failure to dry off promptly after bathing. Internal factors are attributed to weakness of the spleen and stomach with impaired transportation and transformation, or to emotional distress causing the liver wood to overact on the earth, leading to accumulation of water-dampness. As for the disease location, although eczema manifests on the skin, its root lies in the spleen, involving the lungs, liver, heart, and other zang-fu organs—the lungs govern the skin and body hair and control the opening and closing of the interstices; if lung qi fails to diffuse and defensive qi is not consolidated, external pathogens easily invade. The liver governs free coursing and regulates the movement of qi; liver qi stagnation leads to qi stagnation and dampness retention. The heart governs the blood vessels and its luster manifests on the face; heat stagnating in the heart meridian can also scorch the blood vessels and erupt on the body surface. As for the nature of the disease, the acute onset stage is mostly a excess pattern of damp-heat inundation, while prolonged non-resolution presents a pattern of intermingled deficiency and excess—on one hand, there is retained dampness pathogen that stagnates and transforms into heat over time; on the other hand, there is spleen deficiency with impaired transportation and insufficient generation of qi and blood. The chronic stage is dominated by blood deficiency and wind-dryness with loss of skin nourishment, combined with residual dampness toxin that has not been completely cleared. As for the disease tendency, dampness is heavy, turbid, viscous, and sticky, making it difficult to resolve; therefore, eczema recurs repeatedly and drags on for a long time, and is easily triggered into acute exacerbation by factors such as diet, climate, and emotions. As stated in the Suwen · Zhi Zhen Yao Da Lun: "All dampness, swelling, and fullness belong to the spleen." This statement reveals the intrinsic connection between internally generated dampness pathogen and dysfunction of the spleen—the spleen governs the transportation and transformation of water-dampness; when spleen qi is healthy and transporting, water essence is distributed in all four directions; when the spleen fails to transport properly, water-dampness accumulates and generates various patterns. Recurring eczema is precisely the projection onto the skin of this pathological chain of spleen deficiency with exuberant dampness, stagnating and transforming into heat. This pathogenesis is closely related to the spleen meridian—Yinlingquan (SP9), which belongs to the Foot Taiyin Spleen Meridian and is the He-sea point of the spleen meridian, is located on the medial side of the lower leg, in the depression between the lower border of the medial condyle of the tibia and the medial border of the tibia, and is a key point for strengthening the spleen and draining dampness. The Yulong Ge states that "Yinlingquan point can eliminate dampness," revealing its theoretical significance in regulating water-dampness metabolism.
So, how can we start with daily care to alleviate recurring eczema with intense itching? TCM emphasizes "treating disease before it arises," that is, regulating the body before symptoms worsen. Regarding dietary recommendations and restrictions, one may appropriately reduce intake of seafood, beef, mutton, alcohol, and other "stimulating foods"—these foods are mostly fishy, muttony, or pungent heat-promoting items that easily foster dampness and generate heat and stir up latent pathogens. One should choose more ingredients that strengthen the spleen and drain dampness, such as coix seed, adzuki bean, and winter melon—coix seed is cool in nature with a sweet and bland flavor, capable of strengthening the spleen and percolating dampness; adzuki bean is neutral in nature with a sweet and sour flavor, capable of promoting diuresis and reducing swelling; winter melon is slightly cold in nature with a sweet and bland flavor, capable of clearing heat and promoting diuresis. In addition, meals should be eaten at regular times and in proper amounts, avoiding overeating, and especially avoiding late-night snacks to reduce the burden on the spleen and stomach. Regarding daily rhythm, one should comply with the yin-yang of the four seasons, rising at sunrise and resting at sunset, and try to fall asleep before the zi hour (11 PM)—during the zi hour the gallbladder meridian is on duty, and during the chou hour the liver meridian is on duty; adequate sleep helps the liver and gallbladder free course and the blood and qi return to their root, thereby promoting normal water metabolism. Regarding emotional regulation, one should face the distress caused by eczema squarely and avoid anxiety and irritability arising from repeated itching; one can relieve stress by listening to soothing music, practicing calligraphy, or confiding in family and friends, so that liver qi flows freely and qi movement is unobstructed. Regarding exercise and daoyin, one may choose gentle exercises such as Baduanjin, taijiquan, or walking, with slight sweating as the measure—this can both regulate qi and blood and assist spleen transportation and transformation, while avoiding excessive sweating from vigorous exercise that consumes qi and yin. However, it should be noted that these methods serve only as adjuncts and cannot replace professional pattern differentiation.
When eczema recurs with intense itching, is it necessary to seek professional help? The answer is yes. TCM regulation emphasizes "treating according to the individual," as constitutional differences among people are enormous—some are dominated by "damp-heat inundation," presenting with red, swollen skin, exudation, dense vesicles, accompanied by bitter taste in the mouth, sticky mouth, short and yellow urine, sticky and unsmooth stool, a red tongue body with yellow greasy coating, and a slippery rapid pulse; this pattern is mostly seen in the acute onset stage. Some are dominated by "spleen deficiency with dampness accumulation," presenting with dull-colored skin lesions, not much exudation, itching that is sometimes mild and sometimes severe, accompanied by poor appetite, fatigue, and loose stools, a pale and enlarged tongue with teeth marks on the edges, white greasy coating, and a soft slow pulse; this pattern is mostly seen in the subacute stage or remission stage. Some are dominated by "blood deficiency and wind-dryness," presenting with dry skin, desquamation, thickening and roughness, and lichenification, accompanied by dizziness, sallow complexion, insomnia, and frequent dreaming, a pale tongue with little coating or a thin white coating, and a thin choppy pulse; this pattern is mostly seen in the chronic stage. The key points for distinguishing the three are: in damp-heat, the skin lesions are bright red with obvious exudation; in spleen deficiency, the skin lesions are dull with poor appetite and loose stools; in blood deficiency and wind-dryness, the skin lesions are dry, thickened, and itch severely at night. Licensed TCM practitioners remind us: only after identifying the pattern through inspection, auscultation and olfaction, inquiry, and palpation can a personalized regulation plan be formulated, such as oral Chinese herbal medicine, external washes, or acupuncture. Do not apply traditional formulas on your own, lest the condition be delayed.
Are you curious about how TCM external therapies address recurring eczema with intense itching? In addition to oral medications, TCM also commonly uses herbal wet compresses, moxibustion, cupping, and other methods. The method of herbal wet compress has existed since ancient times; the Waike Zhengzong records methods of decocting herbs that clear heat, resolve toxin, dry dampness, and relieve itching to wash sores and ulcers. For example, decocting purslane, phellodendron, and other herbs in water and applying wet compresses to the affected area helps clear heat, dry dampness, astringe, and relieve itching—purslane is sour and cold, capable of cooling blood, resolving toxin, eliminating dampness, and relieving itching; phellodendron is bitter and cold, capable of clearing heat, drying dampness, draining fire, and resolving toxin. When applying wet compresses, care should be taken that the medicinal liquid is at an appropriate temperature, warm but not hot, to avoid irritating the skin lesions with excessive heat. Moxibustion, by warming and unblocking the meridians and supporting yang qi, is relatively suitable for regulating the remission stage of spleen deficiency with dampness accumulation type eczema, and is often selected accordingly. It should not be used in cases where it would reinforce heat and stir blood. Cupping, through the action of negative pressure, opens the local interstices and helps eliminate dampness pathogen from the body surface, but during operation one must avoid areas with obvious erosion and exudation. For damp-heat-related skin itching, TCM also frequently discusses Quchi (LI11) of the Hand Yangming Large Intestine Meridian. Quchi, also known as Yangze, is located at the lateral end of the elbow crease, at the midpoint of the line connecting Chize and the lateral epicondyle of the humerus when the elbow is flexed; it is the He-sea point of the large intestine meridian and has the functions of dispelling wind, clearing heat, and harmonizing the constructive and blood aspects. The Zhenjiu Jiayijing records that it can treat "urticaria" and other skin disorders. However, specific operations must be guided by a licensed TCM practitioner through pattern differentiation and should not be imitated blindly. It is worth noting that any external therapy should be premised on "not irritating the skin"; if stinging occurs or the condition worsens, it should be stopped immediately and a professional consulted.
Finally, let us consider: is recurring eczema with intense itching related to emotional stress? In TCM theory, the liver governs free coursing; long-term anxiety and tension can lead to liver qi stagnation, which in turn affects spleen and stomach transportation and transformation, aggravating internally generated dampness pathogen. This is the transformation known in the five-phase theory as "wood depression overacting on earth"—the liver belongs to wood, the spleen belongs to earth; liver qi stagnation then attacks the spleen horizontally, and when the spleen fails to transport properly, water-dampness accumulates internally. When dampness stagnates over time and transforms into heat, the damp-heat travels along the meridians and erupts onto the skin, which can cause recurring eczema. Therefore, maintaining a cheerful mood and regular daily routines is also an important part of regulating eczema. In addition, Taichong (LR3), the yuan-source point of the Foot Jueyin Liver Meridian, is located on the dorsum of the foot between the first and second metatarsal bones, in the depression anterior to the junction of the metatarsal bases, and has the functions of soothing the liver, regulating qi, and promoting smooth qi movement. Liver qi stagnation can affect spleen and stomach transportation and transformation, and has a certain association with the pathogenesis of recurring eczema and emotional distress. "For liver disease, select Taichong" comes from the Lingshu, showing its theoretical significance in regulating liver qi stagnation. In daily life, one can calm the heart and settle the spirit through quiet sitting and breath regulation, daoyin, and massage, so that the ascending and descending of qi movement is orderly. But please remember: popular science knowledge cannot replace diagnosis and treatment; if symptoms persist or worsen, please promptly consult a formal medical institution.