I have Breast CA 2b and I have just finished my chemo therapy and some veins in my right arm have collapse?

I would really avoid massage if you're having vein collapses. I've had them too, in the only arm I can use for veinous access. Once they are collapses, it's really iffy whether they will "un-collapse" … it's possible, but only if the veins are left alone for months.