I messed up

I made a syringe of Tylenol as my baby is teething and brought it in the bedroom with her for bedtime. I put it on the drawer and if she sleeps well and doesn’t need it I’d just get rid of it in the morning. My baby started crying and touching her gums. Plus she makes a face when her teeth hurt. So I picked up what I thought was my freshly made syringe. It wasn’t. It was an old one I didn’t take out of the room. She didn’t have Tylenol last night so my guess is it’s 2-3 days old.

I’m very tried. And now I’m worried.