Thanks Guys
yeah she has hodgkins....and i actually read that some people use medicated weed to help with chemo, i told my parents....they didnt really say much....lol

My sister is 32 and yeah she smoked (weed and ciggies) since she was about 15....not good signs for me and my smoking habits.....which is why i think if i say somthing along the lines of i wouldn't need to smoke tobacco if i smoked green.....i wont say it if its not really appropriate but ill try and squeeze it in when they bring up my smoking....
i could also re-mention that it will help my sis and id obviously keep her stocked up aswell....

but thanks again guys
much appreciated