Help Robert Buckler battle cancer

My Brother Robert Buckler was diagnosed with esophagus cancer in March 2017. He was treated with chemo and radiation therapy for many weeks to be followed by surgery. Before surgery could be scheduled cancer returned. In July Cancer has spread to thigh and ankle bone though blood stream. He has been a self employed carpet installer for over 30 years and now unable to work to provide for his wife and 3 minor children. Any help would be great appreciate. God bless you