Let’s say you’ve had a diagnosed yeast infection in the past, you self-treated a recent one in the last month or two, and it seems like the infection didn’t go away—or it went away but now it’s back. That might mean the treatment simply masked the symptoms rather than eradicating the overgrowth completely. “If your symptoms aren't better and they don't stay better, then you really have to go in and get checked,” Dr. Eckert says.
The colloquial term "thrush" refers to the resemblance of the white flecks present in some forms of candidiasis (e.g. pseudomembranous candidiasis) with the breast of the bird of the same name. The term candidosis is largely used in British English, and candidiasis in American English. Candida is also pronounced differently; in American English, the stress is on the "i", whereas in British English the stress is on the first syllable.
According to the Department of Clinical Research at Merck Research Laboratories, candidiasis can become invasive in cancer patients and present a serious complication. (3) In this study, one-third of patients being treated for cancer had “invasive” candidiasis. Chemotherapy and radiation can both work to kill cancerous cells and tumors; however, they also kill off the healthy bacteria that naturally fight candida.
You may be trying to treat an infection that is not a yeast infection. Studies show that two out of three women who buy yeast infection medicine don't really have a yeast infection.2 Instead, they may have an STI or bacterial vaginosis (BV). STIs and BV require different treatments than yeast infections and, if left untreated, can cause serious health problems.