Flagystatin after cervical cerclage

Did cervical cerclage at 24 weeks. I was prescribed flagystatin pessary at 26 weeks cos I had some itches. First 2 times using the pessary was OK but on the 3rd time i bled bright red on the spot. It stopped overnight but now I have dark red discharge every few hours. Is it serious enough that I have to go to the hospital? Its the cervical cerclage element that makes me more clueless and afraid. #1stimemom