Stickyweed / cleavers found their way into my garden last year and this year it's getting out of hand.
This afternoon I decided to pull out a bunch as I was walking outdoors. In my shorts and 3/4 length sleeves.
I will NOT do that again! My skin burnt as if I'd been walking through nettles. The soft skin on my arm's inside had red markings that I can still see now, hours later. The stinging sensation has gone.
Seriously unpleasant!!
I did not know.
I love nature, but I was not amused!

Ooh I used to love this stuff as a kid , we used to throw it over each other Cus we thought it was funny it sticking to us .
But I don’t like it know as an adult Cus it’s a pain in the backside !!
I used to get loads in my old garden .
Was that a reaction to it you had , or is it generally an irritant thing as I’ve never noticed hat I’ve got irritated by it before

Where there are plants, there are most likely insects.
Your reaction may be due to bites.

Dunno, but getting it on bare skin is unpleasant as it wants to stick to whatever. It doesn't have any grip on skin really, but I think that whatever it is that makes it sticky is what caused the burning sensation.
I've pulled it out before too, but then I was always wearing trousers and long sleeves or jacket.

It was the long things grazing my skin as I pulled them out and sort of rolled them up. I seriously have red scratches on my arm.

This is the kind of 'scratches' that the inside of my arms were covered with. I can still see today although less red.