Perioral dermatitis (POD, also referred to as periorificial dermatitis) is an inflammatory and chronic papulopustular and vesicular dermatitis often affecting children and middle-aged females. 1 Topical or systemic treatment is often used, in addition to identifying the likely cause. 1 The granulomatous form of POD is a more typical presentation in those of African-American ethnicity. 2 In terms of etiology, most dermatologists are aware of its association with corticosteroid use, but less is known about other associations such as infective causes, certain cosmetic products, disruptive skin barrier, dental fillings, and toothpaste reactions. In terms of treatment, options range from topical, systemic or conservative, depending on cause, severity, and patient's choice. 3 In this systematic review, we explore the diagnosis of POD, possible etiologies, and treatment options.
| ME THODSUsing the keywords "corticosteroids," "dermatology," "fusobacteria," "perioral dermatitis," and "periorificial dermatitis," we searched the databases PubMed, MEDLINE, and EMBASE and identified pertinent English language only literature. Our review was conducted in January 2021, and the time period of evidence was collected from the inception of these databases till January 1, 2021. We appraised the level of evidence, utilizing the Oxford Centre of Evidence-Based