It must be really scary to have this disease and not have insurance, whoa, that sucks. I am sorry to hear that anybody is without insurance.
My doctor gave me some samples, maybe see if your doctor will give you some canasa samples or whatever that might help.
If not, then def. go see another doctor and see if they can give you some samples!! It will help and getting another doctor involved might make you feel less stressed, which might help your health.
I am going to get another doctor as well.
good luck.