Scratching +Rep

[Eric]

Take an MRI and go look for a dermatologist or neurologist ? It has to be something to do with brain or skin.

:S

[Narnat,]

As it has been said up above it is a form of habit, Some people have different opinions and could see it as a mild form of self infliction. The best thing to do is to see your doctor or speak to someone about it and then take it from there. Best of luck with it though!