Introduction: The most common causes of the abrupt onset of unilateral facial weakness are
stroke and
Bell's palsy. The
drug regimen together with electrical stimulation was more effective in treating
Bell's palsy than conventional
drug treatment alone. We aimed to evaluate more effective and safe
therapies for the treatment of
Bell's palsy. Methods: This clinical interventional study was conducted on 30 diabetic patients with
Bell's palsy who referred to a pain clinic for 1 year and were treated by low-level
laser (LLL). The system of House-Brackmann was used for assessing the severity of nerve damage and patients were evaluated by electromyography and nerve conduction study (NCS) before and
after treatment with low-level
laser. These patients had not consumed any other medication for facial nerve
palsy. Results: In the present study, 30 cases with poorly controlled
diabetes mellitus (18 females and 12 males) were studied. After 12 sessions of
low-level laser therapy (
LLLT), we could observe complete recovery in 18 patients and partial recovery in 6 patients after 3 months. Conclusion: The recovery rate showed that
LLLT is a safe, reliable and proper alternative approach for the treatment of facial nerve
palsy, especially in the presence of underlying conditions such as
diabetes mellitus.