Seems like the after effects differ for everyone then. I've done this twice now and the worst I've had the following day is a small itch.
That being said, the second attempt didn't go nearly as well as the first. I went and picked some fresh burning nettle, and the stings of those were so strong the pain diminished the pleasure. While I've never been a huge CBT fan, some light pain is quite enjoyable. This was a long, sharp and concentrated pain that lasted a good few minutes after the sting. Not a lot of fun.