Recurrent vaginal infections are typically due to reinfection with the same strain of microbe or yeast.
Portly controlled blood sugar is linked to more yeast infections, especially for diabetics. Those dieting with the new diabetic medications find that they have better sugar control and fewer yeast infections! A wonderfully effect of the new medications of Zepbound and Wegovy.
Those with poor gut health are more likely to experience yeast infections. You can use probiotics as a chronic infection prevention strategy.
Genetics of fighting infections is linked to prevention of recurrent infection. Genetics of the yeast you have acquired makes it more or less likely to recur. Some strains are immune to the treatments. It’s thankfully rare to have a resistant type of bug, but it is possible.
If you do have one of the resistant types of yeast, but are experiencing recurrent disease, you should be treated and get tested until you are rid of it.