I'm curious to know how your son's fiance did. LEEPs need to be done under some type of anesthesia - absolutely cannot be done just in an office. I hope this wasn't the case for your future daughter-in-law.
After the procedure, she should not have been anymore uncomfortable than after having a D & C. Yes she may have some discharge, but nothing terribly bloody. That would indicate a problem.
Always better to ask these questions of your (or her) physician than to listen to hearsay. It scares folks unnecessarily more often than not.