Get rid of the shorts and never buy a pair with the same chamois again - seriously. I had a pair that did that. The seam was like a little saw and would leave a crescent shaped cut on my unhappy booty. None of my other shorts do this, nor should they. Don't try to make them better, cream on the seam doesn't help, thinking you'll just save them for short rides is wishful thinking... just throw them away. If they are new and the place you bought them from has a satisfaction guarantee return them.