any help available for copays

Hi, my name is Cindy. My husband was diagnosed with Cholangiocarcinoma a couple months ago. He has stage 4. He has good days and bad days so far. He is taking Gemzar as his chemo. He had a port put in. I am looking for help on this site as the chemo is not fully covered. If anyone has any info on who helps with chemo co-pays it would be helpful. He was in the service in the 60s and was in Korea for a year. I am finding out about a parasite from there for drinking the water there and eating the fish. That could be the cause of this cancer, I have filed with the VA on this…does anyone have any info on this being the cause of their cancer? Thanks ahead for any info.