Herbal Plaster Therapy for Acute Soft-Tissue Injury:Single Clinic Experience in Shanghai, 2010–2025, and the Question of Transferability

Herbal Plaster Therapy for Acute Soft-Tissue Injury: Single-Clinic Experience in Shanghai, 2010–2025, and the Question of Transferability 1. Introduction and Objectives Musculoskeletal injury is common wherever health systems are stretched, and low-cost care close to communities eases referral pressure. External herbal plaster therapy is widely used in China for acute soft-tissue injury but seldom described in terms a global health audience can appraise. This presentation reports routine practice from 2010 to 2025 in one Shanghai clinic, a stable non-crisis setting, and asks what might transfer to constrained settings, and what must first be established. 2. Methodology Retrospective record review at one private traditional Chinese medicine (TCM) clinic in Shanghai, 2010 to 2025. Approximately 450 patients presenting within 72 hours of acute soft-tissue injury received topical plasters compounded to TCM formulary; prior treatment elsewhere was not an exclusion. Two application methods were used: superior-to-inferior (tangerine peel, safflower, dragon's blood in brown sugar and honey) in the acute phase, for superficial injury without contamination or fracture risk; and deep-to-superficial (astragalus, saposhnikovia, agrimony, Chinese lovage, angelica dahurica, stemona) later in the same episode, for slow-healing presentations. Suspected fracture, head injury, crush injury, wound contamination and neurovascular compromise were exclusions requiring referral. Plasters were prepared fresh as a herbal paste on cloth backing and applied 6 to 8 hours daily over 3 to 7 days, with review at each application. No standardized instruments were used: pain and mobility were recorded as clinician assessment and patient report, adverse events in the same notes. Records were extracted by the treating clinician using a standard proforma and analysed descriptively as proportions; extraction was single and unblinded. Accessibility, operational simplicity and community feasibility were judged retrospectively against preparation time, ingredient cost, equipment needed and the training an assistant would require to apply a plaster unsupervised. Loss to follow-up was not systematically recorded. Retrospective audit of routine private-clinic records does not require formal ethics approval under Chinese practice. 3. Results and Discussion Of approximately 450 patients, roughly 95% reported improvement, typically staged as early symptomatic relief, then reduced swelling, then return of function, often within 36 to 48 hours. About 5% developed self-limiting skin sensitivity requiring adjustment or cessation, an adverse event rather than a treatment failure. Judged against the dimensions above, the favourable feature was the minimal equipment and infrastructure required; the principal constraints were preparation time and the need for fresh compounding. These are uncontrolled observations from one non-crisis clinic: most soft-tissue injuries improve spontaneously, improvement was not measured with a validated instrument, and formulations are not standardized. 4. Conclusions Transferability is a hypothesis, not a finding. Its plausible component is the low equipment and infrastructure requirement; its obstacles are fresh on-site compounding, formulation standardization, herb supply and cross-jurisdictional regulation. Controlled prospective evaluation and safety assessment would be prerequisites to humanitarian use. This experience is offered to invite that scrutiny rather than to claim efficacy. Conflict of interest: the author owns and practises at the clinic described.