@toastyjakes is correct. It's a film of Diatomaceous Earth I haven't been able to get off all the way.
It brushes right off, but I have a heavy hand when my heart skips a beat once in awhile. At least I don't pass out LoL
The sneezing now that you mention it started right after I applied the DE. Smelling pinene off bud I'm about to smoke also makes me have a sneezing fit just like when I'm around hay and dried grass.
They really seem to be liking it compared to before, but IDK if that's normal. I'll get experience one day, but until then I'm prepared to make mistakes along the way.
My eventual goal is working in a dispensary as a chef or grower (one of many LoL). At least something I can have a passion for I should work my ass off for is how I see it.