This study focuses on 34 victims of aggression at the workplace, less than 48 hours following the incident of aggression. We compared victims who received an EMDR emergency protocol (URG-EMDR; n = 19) that we developed with those who received a method of intervention called eclectic therapy (n = 15). The results show that URG-EMDR therapy, provided within 48 hours, resulted in a greater decrease in perceived stress and a lower PCL-S score than eclectic therapy did. The scores were lower in both groups after 24 hours, and after 3 months, the drop was significantly greater among the victims treated with the URG-EMDR protocol; none of the EMDR-treated patients exhibited symptoms of posttraumatic stress.