hi there, intermenstural bleeding can be due to many reasons and its best to rule out the serious ones before relaxing. Get your Gynec examine your cervix
and if required get PAP exam done. An ultrasound
abdomen also may be required to rule out any ovarian or uterine pathology. To take care of the repeated infection you and your partner need to be treated simultaneously so that you don't get reinfected.Repeated vaginal douching also leads to vaginosis and so that practice should be discontinued. You do need to visit the doctor and get any serious condition ruled out. Take care,.