How about the need to include the patients family in your teaching? Dietary requirements, nausea issues, problems with cold food or drinks with some chemos, timing visits to allow for rest, no fresh flowers or fruit and WHY. All of these need to be part of your patient education as well as the pain and infection issues. By including family members the burden of sharing info with the members of the family is taken off of the patient and placed on the nurse who is more able to openly discuss these issues without fear of "hurting enyones feelings".