Prepping for colonoscopy while in the middle of flare

I guess Im in the middle of a flare because I was diagnosed last week.

Im prepping and having my first colonoscopy next week and Im terrified about the pain in my backside since thats where my LS lives.

For the past year about every other time I have a bm Im bleeding from tears down there started last year when I was constipated and had to deal with a larger/wider that normal movement.

I think that was the trigger of my LS to start because I never really healed from them.

Has anyone got some suggestions to keep from hurting too much while doing prep?