Objective: Bell's palsy is characterized by acute, unilateral onset that compromises function and esthetics, exerting a considerable impact on the social, professional, and psychological aspects of the lives of affected individuals. The objective of this study was to determine whether laser acupuncture therapy could relieve symptoms in patients with Bell's palsy in 8 weeks.

Methods: This study was randomized controlled trial including 360 patients that undergoing Bell's palsy. All the patients received oral Prednisolone. Patients were assigned to the laser acupuncture (LA) group, Sham LA group and control group, with 120 patients in each group. LA group and Sham LA group were received 4 weeks of Laser treatment (3 times per week). Clinical outcome measure comprised the House-Brackmann grading system, Facial Clinimetric Evaluation Scale (FaCE), Sunnybrook facial grading scale (SBFG), Facial Disability Index (FDI) and Facial Clinimetric Evaluation Scale (FaCE Scale) All the measurements were collected at the baseline, weeks 2, 4, 6, 8, 12 and 24.