fluoride
I just want to add my 2 cents. I had been having itching, burning, irritation, and cracking vaginally for about 2 years. It would go away for maybe a week and then come back. I did a lot of research and reached the point where I believed that fluoride was my problem. A month and a half ago I eliminated all of the sources of fluoride I could and began drinking distilled water. 2 days after I did that the symptoms stopped and have not recurred since. My heartburn has also gone away as well as a rash I have had for years that made shallow ulcerous sores all over my body.
Fluoride is classed as a rat poison and what is dumped in our water supply is scrubbed from the smokestacks of the phosphate fertilizer industry and is bound to metals such as mercury, lead, arsenic, and aluminum. It is a cumulative poison. It is slightly more toxic than lead, and slightly less than arsenic. Do a search on chronic fluoride toxicity and you will find numerous studies showing how damaging fluoride really is.
If you want to try an elimination what you will have to avoid is tap water, fluoride toothpaste. tea, sodas, juices, commercial soups, teflon and tefal, fluoride drugs and anesthetics, commercial grapes and their products, mechanically deboned meats, soy products, and be aware that diflucan is a fluoride based drug.