Stage IV Lung Cancer Expense

I am so much embarrassed to air out personal financial problems.  As most of you know, I was diagnosed with Stage IV Lung Cancer about a year and a half ago. It spread to my brain and now my liver. I'm hanging in there and will continue the fight.  Before the diagnosis,  I felt bulletproof.  I was healthy and didn't need a medical supplement or drug plan. I was wrong. I'm to a point now where my wonderful wife and I can't afford to fill prescriptions. I've had to go without.  For instance,  recently my  oncologist prescribed a mouth rinse for me because I have mouth sores caused by the chemotherapy. Cost $77 and can't afford it. I have many prescriptions and  need to pick and choose which ones to fill. Any little bit of help would be greatly appreciated,  but if you can't,  please don't worry about it. Thank you.