Background <p>Jidabokuippo (JDI), a traditional Chinese herbal medicine, has historically been used to alleviate ecchymosis and mitigate pain associated with sprains and contusions. This study aimed to evaluate the potential therapeutic benefits of JDI in reducing post-blepharoplasty ecchymosis and pain severity.</p> Methods <p>A single-blind randomised controlled trial was conducted involving adult patients scheduled for upper blepharoplasty under local anaesthesia. Participants were randomly allocated to either the JDI or control group. The JDI group received a daily dose of 7.5&#xa0;g JDI for five consecutive days beginning the day after surgery, whereas the control group received no intervention. Objective assessments were performed on postoperative days 1, 4, 7, and 14 using a standardised 5-point scale to evaluate ecchymosis in the upper eyelid region. Subjective evaluations were performed using the same scale, incorporating patient-reported symptoms. Postoperative pain was quantified using a numerical rating scale (0, no pain; 10, worst imaginable pain) at 0, 1, 3, and 24&#xa0;h postoperatively.</p> Results <p>A total of 60 patients completed the study. The data revealed that the JDI group exhibited significantly reduced upper eyelid ecchymosis on postoperative days 1, 4, and 7, as assessed by both observer evaluations and patient-reported outcomes, compared with the control group. Additionally, JDI-treated patients reported significantly lower pain scores at the observation points of 3&#xa0;h and 24&#xa0;h postoperatively.</p> Conclusions <p>JDI improves postoperative outcomes following blepharoplasty, particularly by minimising ecchymosis and alleviating pain. These results support the judicious incorporation of JDI in postoperative care protocols for enhanced recovery.</p> Level of Evidence <p>Level I, therapeutic study.</p>