A teenager with a blistering pores and skin eruption Test your diagnostic skills inside our regular dermatology quiz. What is the reason for this severe blistering disorder and how should it end up being treated? Case presentation An 18-year-older man presents with a three-month history of a severe itchy, blistering eruption involving his trunk, top limbs and oral mucosa . He had been previously well. At first presentation, skin swabs had been demonstrated and taken Staphylococcus aureus. The patient had been treated with two programs of oral flucloxacillin, however the eruption hasn’t improved. What is the most likely diagnosis?.The process of research selection is presented at length in Figure 1. Furthermore, we also included two reports that investigated the epidemic EM outbreaks in Shaoguan of 2009 and Foshan of 2014 in Guangdong province, China, respectively .Physique 1: Movement chart of the analysis selection process.Full size imageData extraction and collectionFor each included paper which met requirements , and , we extracted the next information: authors, year, way to obtain publication, time and located area of the epidemic EM outbreak. For studies which further met criteria , the exact time and prevalence of EM were added.