DD (2.2) sometimes gets dribble rash on one side of her mouth where she sleeps with her mouth open. A couple of weeks ago she got a sore spot just about half a centimetre from the left side of her mouth. The problem is, it's where she tends to fiddle when she sucks her thumb, and it's not getting any better. A few times she's scratched it till it bled. She'll leave it alone for a couple of days and then go at it again and I find blood/dribble on her pillow. I've tried cutting her nails as short as they'll go, plasters on it, antibiotic cream. Should I take her to the GP? Trouble is, I don't see what the GP could do. How can I get her to leave it alone? I'm sure she's already going to have a scar there.