My Grandfather's lung cancer

About 2 months ago my Grandfather was diagnosed with stage 3 lung cancer. Hes worked his entire life to take care of his family. As any family would be, we were very unprepared for this to happen. It came as the biggest shock to us all. As of right now he has finished a month of radiation and two 6 hour chemo treatments. The chemo has made him very ill. My grandmother has had to take leave from work to take care of him with no income. We don't normally ask for help, but I love my grandparents and they truly need some support right now. Anything helps. Thank you