The goal of this clinical study is to find out whether different electronic acupuncture wave forms can effectively treat recovery-stage Bell's palsy in adults and evaluate their safety.
The main questions it aims to answer are:
* Can targeted electronic acupuncture wave forms improve facial nerve function in patients with Bell's palsy? * What is the optimal electronic acupuncture waveform for different degrees of facial nerve injury? * What adverse events may occur during electronic acupuncture treatment? Researchers will compare low-frequency continuous wave electronic acupuncture and intermittent wave electronic acupuncture to determine which waveform works better for recovery-stage Bell's palsy.
Participants will:
* Receive either low-frequency continuous wave electronic acupuncture or intermittent wave electronic acupuncture every other day for 4 weeks * Undergo surface sEMG and ENoG examinations at baseline, Week 2, and Week 4 * Complete facial function assessments and safety evaluations at each clinic visit
Meet the above Bell's palsy diagnostic criteria;
Age 18-65 years, either gender;
Disease course in recovery phase (21 days ≤ course ≤ 6 months) and not recovered (FNGS 2.0 score >4);
Voluntarily participate in this study and sign informed consent.
Facial trauma, skin lesions, or other diseases that may cause facial paralysis symptoms;
Diagnosed with Ramsay Hunt syndrome (herpes zoster oticus);
Bilateral facial paralysis;
Previous history of facial paralysis;