Sorry about the news, I’m sure that was difficult to hear! From my experience of seeing my aunt go through the lung cancer treatments wih cannabis supplemented in, it did not interfere with her treatment at all. The cannabis did help her with the pain, discomfort and nausea and that was a blessing for her. I’d get started on a good whole plant high CBD Rick Simpson oil, that’s seems to be the popular choice for cannabis treatment for cancers. Good luck with your treatments and recovery, give that cancer a good fight!