“…A variety of approaches have been used to treat oral lichen planus (OLP) including corticosteroids, retinoids, topical cyclosporine, antimicrobials azathioprine, calcineurin inhibitors and surgery .The main disadvantage of these treatments are their secondary effects . Several studies have investigated the application of chamomile for treating different oral diseases, particularly gingivitis, mucositis, aphthous stomatitis, but most were not randomized, controlled trials for the application of chamomile to treat OLP patients . The purpose of this study was to compare the clinical therapeutic efficacy of topical applications of chamomile for treating OLP vs. a placebo.…”