I referred to capsaicin in the thread below on Limits. There is a good source for information on chemical play in this link.

https://dommeslife.com/education/chemical-play/

Is this something you have experienced? love it? hate it? Love to hate it? grin

I had a Domme tell me one time that she liked it in longer sessions because she could just leave the restrained sub to suffer while she got gear ready, tidied up, answered a couple of emails or just took a break. Kind of like putting the session on autopilot for 20 minutes or so. grin