I would suggest buying a (reuseable) douch from the pharmacy and filling it with 1/4 organic apple cider vinegar with mother 1/4 aloe (100%) vera gel and 1/2 distilled water. Use each morning while you shower or bathe. Then in the evening before bed fill with pure plain yogurt with acidophulus/Bifidus. Wear a pad to bed to soak up the discharge. Do this for 7 days.
If you think it could be an "STD" or something more serious than a "normal" yeast infection or bacteria infection then please see your health care professional for diagnosis. Especially if you have any pelvic pain.