Intradermal Needle Therapy Relieves Postoperative Pain After Endoscopic Submucosal Dissection (ESD)

In addition to conventional treatment, patients in the treatment group received intradermal needle therapy after returning to the ward safely. Bilateral Hegu (LI4) and Zusanli (ST36) acupoints were selected for this therapy. Patients were positioned in a supine position, and after locating the acupoints, the skin of the acupoint areas was sterilized with 75% ethanol using a medical cotton swab. The intradermal needle was then removed along with the adhesive tape, inserted into the acupoints, and pressed every 4 hours for approximately 60 presses each time, excluding nighttime sleep. The pressure was applied until an acid, swelling, or numb sensation was felt at each acupoint. The intradermal needle therapy was administered only once and continuously pressed for 3 days.