Possible Allergy?

Hey, this is my first post so if it's in the wrong place, sorry. Anyway, about 3 weeks ago I smoked for the first time, 30 bud out of a bubbler, about two hits on two consecutive nights and everything was good. This past weekend I smoked again, two bong rips with stuff that was a little less potent, and then later that night took another bong rip of dank. I woke up with a small rash around both of my wrists and a little on the palms. It was like small zits on my hands, it wasn't extreme but enough for me to question if I may have had a reaction to the weed in general or maybe just because it was a different grade. Any advice or personal experince is fully appreciated.