richie benaud revealed late last year he was suffering from skin cancer .
he had radiation treatment for lesions on his forehead and top of head .
he used the chance to ` recommend to everyone they wear protection on their heads '
benaud had looked frail after suffering serious injuries in a 2013 car accident .
after the crash and cancer treatment richie benaud was walking daily with wife daphne .
he hope to get fit enough to return to the commentary box but never did .