Brenda has Cancer needs help

My wife Brenda is 62 years old. She has had a tuff couple of years. Starting with 13 seizures between June 2018 and Nov 2019 All the different scan showed nothing to be wrong. She started taking an anti seizure med's but the seizure's continued. (thankfully less frequently) After the last seizure in Nov we returned to the Doctor and did another blood work up. That is when they found an elevated white blood cell count and her Thyroid numbers were off. They also found lumps in her throat. They did a biopsy and found Cancer. Large B-cell Lymphoma treatable with chemo and radiation. We have insurance but it only covers 80 percent leaving us with a sizable medical bill for her treatment. She has not been able to work since the seizures started (the doctors wont let her drive) and there is no public transportation in are area.
We live 50 miles from Pacific Cancer Care (the nearest one) to us.
I work 40 hours a week and will be to taking Family Medical Leave during her treatment FML only pays 70 percent. Well the Bills are stacking up
Last i looked our share was over $2500.00 dollars and climbing. I am 65 years old working 40 hours a week.  The cost of medical treatment is out of our reach. I am making enough to feed, house and pay the insurance but when you live paycheck to paycheck and own no stock bonds savings or property. It makes it seem hopeless to pay the cost of the drugs and treatment. That is why we are asking for help>
Thank you for your support.