Took about 15 mins, left in for a few hours.
I could still pee through the stiches.

Done that last night for you, see my latest pics.

Yes

Cohesive bandage

No I let it heal naturally. A few hard lumps inside now though.

No to impractical and uncomfortable to keep it on for long enough for it to have any chance of working.

Go on then cut it and then show us the pics