That Cedar makes me cough and sneeze but thankfully nothing else.I've not worked with exotics--plenty of species in this state to work with.
I've discovered that Juniper (aka Cedar to most Texans) and ERC dust and shavings elicit a robust skin reaction on me. Kind of puzzling since I grew up in Central Texas where Juniper is rampant. It's ok, the Cedar smell is good for a little while--until I start sneezing, then it has to GO!
Black Walnut is handled with care, it does cause respiratory issues if I'm not careful.