I would love to hear more of this too. My old boy with HED has a huge tumor that's growing aggressively. I'd like to maybe try something else if I can..
As far as holistic approach, I'm sure most people have heard of turkey tail mushroom by now. I've had great success with it in certain types of tumors, but I have no idea what type of tumors they actually are. I give it mixed with a variety of other stuff when my rats get tumors. In one rat, it stopped growth of a tumor so much that the vet cancelled the surgery and thought maye it was just scar tissue rather than a tumor since it hadn't grown in such a long time. So I stopped giving her the supplement. Soon after I stopped, the tumor started growing again and growing quicker and then needed it removed. It worked on that tumor but not on another one she had.
My HED boy I mentioned has the huge fast growing tumor that seems totally unaffected by the supplements. But he has/had 3 other tumors. 1 bb sized tumor in each armpit, and one almond sized tumor on his side, maybe a mammary tumor? similar location anyway. Well the two bb sized ones are completely gone, the almond sized one is now noticibly smaller.
I'm not sure what exactly is happening but I would really like to know more about any type of tumor control or why certain things work on certain tumors and why. I figure it's at least worth it to try the turkey tail because it sometimes really seems to help my rats when they have them. Just not always.