Which organ is related to eczema?
Generally, the occurrence of eczema is related to the functional status of multiple systems and organs in the body, but it is most closely associated with the kidneys, spleen, and lungs. The detailed analysis is as follows:

Eczema has the closest connection with the spleen. According to Traditional Chinese Medicine (TCM), the spleen governs the transformation and transportation of dampness. Irregular diet or emotional imbalances can impair the spleen’s normal function, leading to internal accumulation of dampness. When dampness invades the skin, it triggers eczema, manifesting as itching, redness, and oozing. Meanwhile, the lungs govern the skin and hair; insufficient lung qi weakens the skin's defensive barrier, making it more vulnerable to external pathogens and worsening symptoms. The kidneys regulate water metabolism—when kidney deficiency occurs, the body's ability to process dampness becomes impaired, potentially causing eczema to become chronic and difficult to resolve. Modern medicine also finds that gastrointestinal dysfunction can disrupt immune balance, indirectly triggering or exacerbating eczema.
In daily life, attention should be paid to regulating internal organs and proper skin care. Diet should be light, avoiding raw, cold, greasy, and heavy foods to reduce the burden on the spleen’s digestive functions. Keep the skin clean, use gentle moisturizers to repair the skin barrier, and avoid scratching or washing with hot water. Maintain regular sleep patterns and avoid staying up late to prevent depletion of lung and kidney qi. When going outdoors, apply sun protection, minimize exposure to external irritants, and wear loose, pure cotton clothing to reduce the risk of eczema flare-ups from both internal and external factors.