Anyone ever get a skin irritation from black walnut saw dust ? I was cutting some black walnut the other day 85 + degrees out in the sun sweating like a pig the next thing I know my arms are burning. I cleaned off the wood chips and I see what looks like little chemical burns . I thought I was crazy I have cut black walnut and never had this problem . I did a search on the net and found out it is a skin irritant io some people .long sleeves the next time I cut black walnut .