He received Total Parenteral Nutrition (TPN) to increase his weight before undergoing ileostomy surgery to remove 30cm of his bowel.
Cox stated the surgery gave him 'a whole new lease of life', enabling him to eat without pain and restore his energy levels.
Four years after the ileostomy reversal, he is in remission, living a healthy life, and offers hope by saying 'there is light at the end of the tunnel'.