The treatment is ‘spray-on’ skin, created with a postage stamp-sized piece of the patient’s own skin.

It is placed in a battery-powered device the size of a lunchbox in a special solution containing enzymes that make the cells proliferate — within half an hour this creates enough ‘spray-on’ skin to cover an adult male torso.

The technology can help burns victims heal without painful skin grafts and without unsightly and uncomfortable scars.

However, it’s not widely available on the NHS.