This is going to sound way out there, but here goes. I remember getting these horrible, painful anus sores when I was on folfirinox and having to
apply goopy diaper rash. I may have to go back on folfirinox and was talking to my nurse about it. She said she has a patient on folfox who gets the same
awful painful sores (an older lady) and she uses banana skins on them. Now, I forgot to ask whether the inside part or the outside part next to the skin, and how long to leave them on, sorry. But the nurse says they seem to work on her patient. A much less messier option than the diaper rash. I'm a botanist and there might be something in banana skins that is therapeutic like that. I'll check it out.
Worth a try though.
Cheryl