Vulvodynia is a perplexing painful vaginal and vulvar condition that is getting more prevalent. Some studies indicate 15% of US women have some sort of vulvar pain with no clear reason as to why.
Electronic records indicate that at least one third of those with vulvodynia had a diagnosis of yeast around the time of their diagnosis.
But statistically, as important as that sounds, it was not established that there was a firm link between vulvodynia and yeast infections, so preventing yeast infections (still a good goal!) cannot cure or prevent vulvodynia.
If you think you have vulvodynia, see your gyno to discuss.