As it ends up, people who have red hair or highlights (that's me with the red highlights and my mom was a redhead) need more lidocaine when having procedures done. This certainly has always been true for me. The doctor said there is a world-wide shortage of lidocaine right now, and it's been hard to get their hands on the higher dosage shots. She went from room to room in the clinic until she located one for me. And sure enough, the extra dosage worked like a charm and she was able to snip the samples she needed.
Now I just have to wait to see what the lab results say. That may take up to two weeks. With my history, I'm fairly certain that it will not be good news. But at least this time the scars will be hidden by my hair. Red highlights and all.