My wife has been getting vaginal itch almost once in 2 or 3 months. Itch is rarely connected with any odour or discharge. If any, she gets white discharge but Sometimes she gets a green discharge without odour. Problem lasts for 2 or 3 days and then clears. She consumes lots of water and cranberry juice for relief. Problem has been on and off for over 3years now. Should we do any other test since it's occuring frequently and not stopping ?