Hello efetish. I have mentioned Capsazin cream as an adjunct to spankings. You are correct, the sensation grow for some time. Very good for teaching a young lady that she is not in charge.
Have you ever actually used Capacin cream?
The danger in using it is that its effects cannot be cancelled or turned off.
Bengay or the capsaicin containing arthritis rubs is a rush, and I will say to use with EXTREME caution and to test it out on very small areas before indulging yourself.
Keep Ben-Gay and Capacin FAR AWAY from and sensitive or mucosal tissues and VERY FAR from your face and eyes.
You might think it has a nice warming sensation, but in larger amounts it is horrible. I rubbed some on my husband's scrotum out of ignorance one time about 15 years ago in an S&M scene and the pain got so severe he literally cried and then a few days later, the skin turned dark brown and peeled off. It was a very ugly site (and sight) and was very sensitive and painful for almost two weeks.
The active ingredients in Ben-Gay are menthol and salicylates of varying concentrations, depending on the version of Ben-Gay or capsaicin creams you are using.
Active ingredients in Capacin is primarily capsaicin--the compound that makes hot peppers hot. Be forewarned of potentially VERY SEVERE reactions on sensitive tissues.
USE EXTREME CAUTION with Bengay or capsaicin rubs. They can be very dangerous.