There are certain things you learn by stumbling across them. One of those is allergies.

Something I recently learned I was allergic to is Tide to Go pens. I had dropped half a cherry on my white shirt, so I used the pen, which I ALWAYS use, without thinking twice. I left the house right after. Not long after my stomach felt very ichy, I lifted my shirt to see a massive red patch of tiny dots right where I'd used the pen.

Still, to this day, nearly a week later, a little red line of dots exists.

Interesting.