Looking in the mirror, Sultan Rashid began to panic as he saw patches of his skin lose colour. He first noticed a white patch on his chest at the age of nine, and then it gradually spread all over his body.
His parents had no idea what it was, and doctors weren't sure at first either, but he was eventually diagnosed at 12 with vitiligo - a chronic autoimmune disorder that causes patches of skin to lose pigment.
Being a teenager with vitiligo was tough. Sultan, from Watford, Hertfordshire, didn't know anyone else with it and felt he was made to feel like an outcast by society.