Boric acid?

I’m irregular, first cycle ttc, and I’m on cd 50. No real symptoms, a short cold that lasted a day (sore throat, stuffed nose) but since yesterday I’ve been feeling a yeast infection coming on. I’ve only had one of these before and it happened due to antibiotics but I know that’s what I’m feeling now.

My question is can I use boric acid suppositories while ttc or should I stay away?