OBJECTIVE: To compare between three groups (LLLT with EXS and IDC with EXS and EXS only to identify which group of patients with sub-acute Bell's palsy may have better improvement following the identified interventions. Moreover, we want to identify how much the LLLT application may affect the recovery following sub-acute Bell's palsy. METHODS: Fifty-one patients with sub-acute Bell's palsy participated in the current study. They randomly divided interrupted direct current with exercise, but group C received just exercises. The participants were in three groups each group containing 17 patients. Group A received 15 sessions in three-week, 5 sessions per week. and group B received 9 sessions in three weeks, 3 sessions per week. And the third group received 5 exercises, each exercises reputation 10 times. The assessment of patient with NCS, HBS and VAS. RESULTS AND CONCLUSION: The overall results of this study shows that there was significant reduction in perception of pain in terms of VAS (p = 0.00)and there are three intervention groups showed a significant difference in the function of facial muscle (p = 0.00), While there are no significant differences between the effectiveness of exercise intervention techniques (before, after) on the function of facial muscles. Also, there was a statistically highly significant difference in mean of house brakeman scale increase (p = 0.00) and housebreak man scale increase (follow-up) between the three groups of treatments at a p-value <= of 0.05 and visual analog scale VAS increase showed that there was no significant difference between the three groups.

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