Our siding is cedar. Some with MCS react to it. My eyes are sensitive to the dust, but it's not something I react to otherwise. We are grateful for this magnificent little forrest that will wrap our tiny home in welcoming warmth.
We are protecting it with Velvit oil. DK combed the worldwideweb and found this stuff with low vocs and great reviews. We've tested it and there doesn't seem to be a detectable scent or reaction about a week after application.
And lots of sunny weather in the forecast!