"I’m starting radiation and an oral chemotherapy this week if i was to use cannabis should i use before or after the chemo pill?"
I recommend to start using it at least a few hours before the chemo pill; and you may need to take repeat doses of M.M., before the dose wears off, in order to stave off nausea and vomiting.
You may have to experiment which dose and timing is right for you.
The high-concentrate CBD oil had anti-nausea properties, and can be smoked in the vaping pen. Other ways to ingest MM are tinctures, teas and sublingually.
Your oncology doctor may be able to make a recommendation as well.