Yeast infection

So this is not my first yeast infection. I live in Florida saiguette it from wet swimsuits a lot. The problem with me having on right now is last time I had a yeast infection I tried used any kind of medicine to get rid of the symptoms and instead of getting rid of it, it Sent Me to the ER because I was highly allergic to all the medicine. They told me it's you get the medicine out and never really told me what to use to get rid of yeast infection. I went to Urgent Care with still having symptoms and they basically said I'm allergic to all of it and that I basically have to wait until the yeast infection goes away naturally so my mom gave me natural medicine to get rid of it and it did eventually. It normally goes away every time I get my period. But my period Is two weeks away and I know I'm going to struggle really hard if I can't get rid of the infection naturally. Does anyone know of anything that I can do naturally to get rid of a yeast infection fast?