Can Permethrin Cause a Histamine Reaction?

Sometimes you have to read the small print...

I've been posting about something quite weird on my Instagram stories. My new shorts have permethrin in them (an insecticide). I didn't know when I bought them. But then I looked a bit closer at the label.

"This textile contains a biocidal product with anti-insect properties. Active ingredient: Permethrin. May produce an allergic reaction."

Yup. You can say that again. When I wear them I don't feel so well.

PS - I asked Craghoppers for my money back but they said no.