Medical Expenses

My dad has been having problems with his lungs for a long time . The doctor wants him to get on the list for a transplant. There will be tests and other things before anything is set in stone. No matter what happens there will be ALOT of expenses during this time . I don't want him to worry about how he's going to pay for his next prescription or other costs. I want him to worry about his health and what he needs to do to take care of it. Anything will help