Dear Heidy,
Unfortunately I have no firsthand knowledge, but “googling” found below:
The American Cancer Society strongly urges cancer patients not to use the Hoxsey treatment. No sound scientific evidence exists to support its safety or effectiveness.
https://www.mskcc.org/cancer-care/integrative-medicine/herbs/hoxsey-herbal-therapy.
I think Sloan Kettering is one of the leaders in CC, so for my mother, I would tend to believe. However, so many unknowns with CC that I hope if anyone with better knowledge or experience can step forward.
Question- were the 2 ONC you went to familiar with CC? Even in Maryland with top notch hospitals, we have had doctors without much experience in cholangiocarcinoma.
I am sorry your family is at this point, and wish you the best,
Catherine