Aim of the StudyTo observe the efficacy and safety of CQE in rapidly alleviating inflammatory activity in UC.Materials and MethodsCQE extracts were analyzed by UHPLC–Q Exactive Orbitrap–HRMS. This study used a self-controlled design before and after treatment. A total of 114 UC patients were included and treated with traditional rectal enema administration of CQE. Among them, 107 patients completed the treatment, and 101 patients with complete clinical and laboratory data were included in the fi