We can't tell you the brush pattern because it's copyrighted (or patented, I'm not sure which.) But Teresa Tapp says at the beginning of the skin brush tape that you can brush in the shower at first if it's too painful. I did, and it helped a lot (although it kinda ruined the brush and got moldy- that's mostly my fault for not drying it properly.)
The brush is basically just a very stiff sisal-fiber body brush.