Ah, Crovect is evil stuff. Having had some splash on my jeans and my legs ached and were red for hours I now wear waterproofs when we're using it - and it rots the flexothane leggings. After working out what was making me wheezy and my eyes itch, I also now wear latex gloves, a hanky over my mouth and goggles when we're using it and wash my hands very thoroughly when we're done - and try not to rub my eyes for some hours after.
Small price to pay to stop the girls and babies getting strucken, but I do worry about the wider environmental impact.
I do wear protective clothing for Vetrazin too, but I do think it is less noxious to humans.