Zoe Waller , 31 , has dermatographia and can draw designs on her own body . Condition is a type of urticaria - where an itchy rash appears after pressure . She was diagnosed with the condition when she was just 13 years old Has become famous across her university and people now make requests .
Zoe Waller , 31 , has dermatographia and can draw designs on her own body . Condition is a type of urticaria - where an itchy rash appears after pressure . She says it 'does n't hurt ' and draws molecules on herself to teach students . Has become famous across her university and people now make requests .