When I was undergoing melanoma treatment, I encountered a lot of people who struggled to find the right words to say to me.

I get it: it's awkward. But the things you say can have a big impact on cancer patients. Some things may do more harm than good. This includes things like "My cousin's friend's nephew's aunt had that same kind of cancer. She died." Ditto for "Have your tried eating kale? I heard that gets...