Questions about Plan B

Hey ladies. So I’m a senior in HS and yesterday my bf and I had protected sex, but unfortunately the condom ended up ripping on the side. Luckily it was before he ejaculated, but to be safe we bought the Plan B pill and I took it that night about an hour after the incident occurred. For understanding, I have horrendous ocd/anxiety that really came back hard this year due to some life changing situations that occurred. One ocd theme I’ve been struggling with is my fear of having an allergic reaction so I’ve been very anxious/stressed around food I’ve eaten multiple times fearing that I’ll loose control because I won’t be able to breathe if I had a severe allergic reaction. For example, yesterday after I took the pill my body went into panic worried that I’d have an allergic reaction (even though I’m not allergic to anything and took this pill one other time my sophomore year). I’ve been very worried about what I eat/drink after taking this pill, worried that something will interact with it and make it less affective or cause some “reaction.” I know these thoughts are irrational, but my anxiety inducing fears can make it feel very real. Luckily my boyfriend stayed with me for several hours calming me down as I was in pure panic for two hours. One question I have is how long does Plan B stay in one’s system and can I drink peppermint tea or will that cause an issue? I read that herbal supplements can hinder the effectiveness although I know tea isn’t an herbal supplement (it’s mostly my ocd that’s causing me to worry something bad will happen if I drink the tea). Any advice would greatly, greatly help.