Although the following images look like some kind of worrying disease or scars, they are actually just harmless shapes this lady can draw on her own skin. After about an hour the shapes die down and completely disappear.

‘My skin is so sensitive that sometimes even clothes can feel uncomfortable,’ said Ms Beal, from Arley, Warwickshire. ‘I can scratch my arm or my back and long lines will come up.

‘But being able to draw on my skin is so cool – it’s my party trick. The Etch A Sketch comparison is pretty accurate, although I wish a good shake was enough to get rid of the itching.’

The condition is called Dermatographia and causes this effect on the skin. It can also make the skin very sensitive.