Allergic to boric acid suppositories??

So I inserted a boric acid suppository about a week ago, I kept having a feeling that night that there was something in me (like a tampon) that was trying to come out. So I went to the bathroom, searched, felt inside, everything and nothing. So the next day I go to pee and it BURNS while I pee but not after, and it still felt like something was in me. Now, I am just having a slight burning sensation when I pee.. could I be allergic to these boric acid pills? My other brand I used worked FINE and nothing ever like this happened but I got these new pills ordered off amazon and I think im allergic to this brand...