Bell palsy (BP) is a relatively common clinical disease, which leads to functional and esthetic disturbances for patients and results in a lowered quality of life. Electroacupuncture received attention in the management of BP. The aim of this study is to evaluate the curative effect of different waveform of electroacupuncture on peripheral facial paralysis in subacute stage and to screen out the optimal waveform.
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Change from Baseline score of the Facial Nerve Grading System 2.0(FNGS 2.0)
Timeframe: Baseline,4 weeks