Green vaginal discharge

Does anyone else experience recurring vaginal infection? I had it once during my 1st trimester and again on my 21weeks of pregnancy. Despite completing the 10 days (insert of pill, prescribed by KKH), it still doesnt go away .. i don't feel any burning, itching or foul odour but the fact it is green and was confirmed an infection twice is worrying me. Anyone precribed a different medicine apart from the pill after recurring VI?#advicepls