Oral lichen planus (OLP) is one of the most common diseases of the oral mucosa. Clinically, it has specific and clearly identifiable features; bilateral symmetric presentation showing a lace-like network of fine white lines (known as Wickham's striae) is an essential element of OLP even if the lesion exhibits a mainly atrophic and erosive pattern. Both antigen-specific and non-specific mechanisms may be involved in the pathogenesis of oral lichen planus (OLP) [1]. The normal oral mucosa may have an overall healthy immune system and any alteration in the immune mechanism could result in OLP and possibly other autoimmune oral mucosal diseases. Recent findings in mucocutaneous graft-versus-host disease, a clinical and histological correlate of lichen planus, suggest the involvement of TNF-a, CD40, Fas, MMPs, and mast cell degranulation in disease pathogenesis. Various treatment modalities are available today in order to treat this lesion with a multifactorial etiology [2].