Does transcutaneous electrical nerve stimulation have an antipruritic effect in lichen planus? A randomized clinical trial

Summary Background Lichen planus (LP) is a moderately prevalent inflammatory disorder that affects the skin and the oral mucosa, leading to a characteristic appearance and causing severe itching. Aim To assess the potency of transcutaneous electrical nerve stimulation (TENS) as an antipruritic line of treatment in patients with LP. Methods We enrolled 30 patients with LP who had a history of recurrent relapses of confined pruritus forcing them to scratch or rub the affected area intensively. Patients were treated with TENS three times per week for 4 weeks. Severity of itching was estimated by visual analogue scale (VAS) and Dermatology Life Quality Index (DLQI). Results There was a statistically significant decline in mean VAS score at weeks 2 and 4 of treatment compared with baseline (P 50%. Significant improvement in itching intensity also resulted in better quality of life, as there was also a significant reduction in median DLQI at weeks 2 and 4 of therapy compared with baseline (P 50% in median DLQI score. Conclusion TENS may be an alternative safe treatment for LP‐induced itching.