I would ask a doctor before you do it, does the dermagraphism appear regularly, its part of urticaria so it does affect your skin ...some call it skin writing I have had it, at the moment it has subsided .
Yeah it appears all the time when I scratch my skin or hit something hard but goes it goes away quickly. I'll make sure to ask my doctor about it
He may prescribe allergy meds for you anti histimines..do you get any other hive rashes ?
No only from scratching, & I don't have any known allergies