This is a great link for Lung Cancer alternative treatments. There is a lot of 
reading but if you go to the end it does discuss vaporizing with foodgrade 
H202. Apparently one must be careful in treating the lung cancer because as the 
cancer is attacked it can produce mucus, inflammation, and congestion. It does 
discuss treatment options and suggests things like DSMO and MSM (as well as 
other things) to fight the inflamation. A lot of information available here.
Paula

 http://www.cancertutor.com/Other/Lung_Cancer.html