1) Xuehai × Skin Immunity: inflammation and itch modulation

Conditions such as eczema, chronic urticaria, and persistent pruritus often involve immune cell activation, mast cell mediator release, and neuro-immune interactions. Systematic reviews and randomized controlled trials suggest that acupuncture may modulate immune-related signaling pathways and inflammatory responses, contributing to improvements in itch severity, erythema, and disease activity. In this context, acupuncture is generally considered a complementary approach alongside standard skin care and medical management.

2) Xuehai × Microcirculation: blood flow, metabolism, and tissue repair

The skin is a highly vascularized organ that depends on adequate microcirculatory perfusion. Impaired microcirculation may compromise barrier renewal, local metabolism, and tissue repair, while inflammatory states can increase microvascular permeability, contributing to redness, swelling, and heat. Studies using laser Doppler flowmetry and related techniques have demonstrated that acupuncture stimulation can induce localized and regional changes in skin blood flow, providing a physiological basis for the traditional concept of “regulating and activating blood.”

3) An integrated view: immunity × microcirculation × skin barrier

From an integrative medicine perspective, skin disorders rarely arise from a single factor. Instead, immune dysregulation, altered microcirculatory dynamics, and impaired barrier function influence one another in a self-reinforcing cycle. As a blood-level point on the Spleen meridian, Xuehai is often incorporated into treatment strategies aimed at stabilizing this cycle, particularly in chronic, relapsing, or slow-to-resolve skin conditions.

Clinical Note

Skin rashes and itching may result from various causes, including eczema, urticaria, contact irritation, allergic reactions, infections, or medication-related effects. Management strategies should be based on individual triggers and overall health status. If symptoms worsen rapidly, spread extensively, are accompanied by fever, significant pain, purulent discharge, or breathing difficulty, prompt medical evaluation is recommended. Acupuncture is considered a complementary therapy and is best used under the assessment of a qualified practitioner, alongside appropriate skin care and necessary medical treatment.