Let's face it: let's look at and deal with the problem.
Set foot: to enter or visit a place.
A bone of contention: a subject which causes disagreement and arguments between people.
Fly in the face of: to oppose or be the opposite of something that is usual or expected.
Get under your skin: to annoy somebody
Skin-deep: superficial
Make no bones about it: to be honest and open about something; to not hesitate to do something.