Is cryotherapy safe?

I don’t like the cold, but am intrigued by cryotherapy as a pain treatment. I can’t tell if it’s safe though. Thoughts?

Although it’s safe for most people (I did it well over a dozen times), it’s one of those things that heavily depends on your medical situation. For example, if you have heart issues, blood pressure issues, etc it could potentially be unsafe.

And since it hasn’t been studied in a broad swatch of people, there could be other conditions or just people in general that it could be unsafe for.