Lactic acid 5 percent mouthwash is an effective mode of therapy in treatment of recurrent aphthous ulcerations.

Background: Recurrent aphthous ulcerations (RAU) are the most common oral mucosal disease among the general population including in Iraq. There is no uniformly effective therapy for this disease.

Objective: To evaluate the therapeutic efficacy and safety of 5-percent lactic acid mouthwash in the treatment of patients with recurrent aphthous ulcerations.