Mom has cancer

Hi there. My mom has been giving 6 months to possibly a year to live. This is her third time around with the same cancer. Chemo and radiation are not an option. She is trying an alternative treatment called ProtoCell. She is in complete denile of the eventual outcome. Is so certain the alternative treatment will work. Is this normal behavior for someone who has been given a short time frame? She has squamous cell cancer, has anyone delt withthis kind before? Thank you.