White discharge and burning during sex?

Could someone tell me what this process and what is the best way to cure it? ...and don't let somebody know me to consult a doctor because the earliest any gyn could fit me in is within april so... Vagisil has a unsullied test for typical infections and what not. I would take that and see what it says. I used to catch that, and come to find out HE had yeast, so we both have to get treated.
peace