Funny that I came across this thread today.......... I've had this little round peeling patch on my left index finger (I'm a Continental knitter). Since I check my blood sugar every couple of days or so I thought that was the cause. But the more I thought about it, I decided that wasn't the case because I never poke/stick my index fingers for glucose readings.
I peeled it off a few days ago, and it healed nicely.
Today I noticed it again. I started thinking "what is causing it?"
LOL I realized it was my knitting.
So maybe tomorrow I'll take a walk to the office supply store and see what goodies I find.
Thank you all for the great advice and suggestions on this.