Yellowish-Green Discharge

!! Contains picture of the discharge, looks slightly more greenish in real life !! Currently 34 weeks pregnant. Just recovered from bacterial infection down there @ 32weeks. Doc prescribed vaginal pessaries (to be inserted into vjj) to treat the infection. It was fine and gone for a few days, but now im having an oddly coloured discharge again with a slight smell and itch. I have been having frequent infections before and throughout pregnancy, but only got it treated once during pregnancy. I wash after every trip to the toilet but yet, I still get infections. Is this another infection? What should i do now?