Electroacupuncture With Two Pulse Patterns for Bell's Palsy Using Surface Electromyography Evaluation

This clinical trial is designed to evaluate the therapeutic effects of two EA parameter settings for Bell's palsy and to investigate the electromyographic characteristics of the disease. The main questions it aims to answer are: * Can continuous pulse pattern and intermittent pulse pattern of EA improve the symptoms of Bell's palsy? * Do continuous pulse pattern and intermittent pulse pattern of EA impact the electromyographic characteristics of facial muscles in patients with Bell's palsy? The researchers will evaluate the effects of continuous pulse pattern and intermittent pulse pattern in treating Bell's palsy by using surface electromyography as an objective indicator of assessment. The trial lasts for 4 weeks and the treatment period lasts for 4 weeks. Participants will: * receive sham EA, EA with a continuous pulse pattern or EA with an intermittent pulse pattern for 3 times weekly for 4 weeks (12 sessions in total). * receive assessment of symptom severity and social functioning on Day 0, end of week 2, end of week 4.

NCT Number	NCT07514117
Lead Sponsor	The First Affiliated Hospital of Zhejiang Chinese Medical University Collaborators: The Third Affiliated hospital of Zhejiang Chinese Medical University
Conditions	Bell Palsy
Enrollment	111 participants
Start Date	2026-05
Primary Completion	2027-10 (estimated)
Study Completion	2027-12 (estimated)
Updated on ClinicalTrials.gov	2026-04-30