Boric acid suppositories

Hello, I was just wondering if anyone had any insight on if I can take one of these while breastfeeding or will it be transferred through breast milk? I have a gyno video call next week and was going to bring this up but until than I can't find anything about it? I had my implanon put in 5 months ago and I have been non stop on and off bleeding since. I think it is really messing with my PH. Thanks in advance!