we used to live next to a creek and had a lot of the stingling nettles. There is a weed that grows near them called Jewel Weed. It is supposed to help the smarting if you rub the juice from this plant on it. In the summer it has orange and sometimes yellow flowers and when it goes to seed the pods explode when you touch them and send the seeds out like little rockets
I bet next time you see the nettles you will avoid them. LOL!!!