Erythropoietic Protoporphyria: Brother and sister must wear hat and gloves outside as sunlight causes skin to swell

Brother and sister must wear hat and gloves in summer as sunlight causes skin to swell Children go out in summer with UV protective umbrellas | UPDATED: 18:03 GMT, 30 July 2012 Sarah, 7, and Mathew, 5, must both take extreme care in summer A brother and sister can't venture out into the summer sun without wearing a heavy coat, gloves and hat, due to an incurable skin condition.