Been using it and Apoxie Sculpt for over 30 years and never had any issues, today I was doing finish work on a couple of northerns and a few hours later my fingers itch like crazy and are all swelled up. No doubt some pokes and abrasions from their teeth didn't help. I guess it will be rubber gloves from here on out. Hope the Benadryl kicks in soon. The itching is driving me crazy!