It is in the Bible. It is said he was scourged before being put on the cross. Do you know what that word means?
Well, just because something is in the bible doesn't mean it is true. I only reference the text to show it is contradictory to itself and could be interpreted other ways.
Scourging would normally hurt any human being, and anyone saying he was scourged, without clarifying what he was demonstrating, is terrorizing the populace into submission like Pilate.
First, i don't think Pilate scourged him or mocked him. This was business, not personal. The business at hand was a public display of terrorism to terrorize the public. So i don't think there was any private torture offered. Whether it was or wasn't, the result would be the same, no pain.
You must admit that with certain kinds of drugs, humans have the ability to not feel pain. I'm saying that a mind fixed on Christ has more power than these certain kinds of drugs to eliminate pain.
The primary fixation is that you must believe, indeed you must know, that you are not guilty. If you have washed guilt away from various levels of your mind, surface and subsurface. Jesus had done this, and so, could not feel the pain that was intended.