In addition to doing all the cleansing over time - bowel, parasite, candida, liver/gallbladder as recommended on the site - I highly recommend the following douche for immediate relief:
6 tablespoons Hydrogen Peroxide 3%
2 quarts purified water
Combine in 2 quart douche bag and douche with this in the morning and evening for 5-7 days. Follow with 2 days of am and pm douches mixing good probiotic (like Primal Defense or BioK Plus) with the purified water.
It works for just about anything going on vaginally. Give it a try - certainly can't hurt! Good luck:) Let us know how it goes.