After having had a few friends be diagnosed with cancer recently and having conversations with them I wanted to put this out there. This is not meant to be a "hey, you have to do this," but more of here are things you can try. The first 4 things on the list are my non-negotiables. They are things that we all would benefit from. Most other things are great for health and what I like to do on a daily basis.

Ground to Mother Earth as much as possible
Get as much sunshine/natural sunlight as possible
Full body exposure, especially affected area
When indoors use full spectrum lighting and
Red Lights
Let's not forget the UVA/UVB as well
No non native EMF on my body. No wearables or phones.
Get outside
Consume lots of chaga and reishi mushrooms
Drink locally sources vortexed water. If can't get this then filter it like crazy to get the garbage out and add in salt.
Etherion Dynamics Vortexer
Anelemma Water Wand
Celtic Sea Salt
Baja Gold Salt
Eliminate negativity in your life
Maintain or learn to cultivate a strong mind through meditation or any means that work for you
Work in and doing moving meditations to help pump your body
Seek out heelers of all sorts
Craniosacral therapy
Acupuncture
Molecular hydrogen in morning water
Water and Wellness
Dr. Mercola
High dose magnesium
Bioptimizers Magnesium Breakthrough
Garden of Life Magnesium
Shielded bedroom
Shielded healing
Go into ketosis, at least cyclically
Learn to breath properly all the time
Be happy and learn what happy baking is for you
Walk a whole lot to keep pumping the body
Eat a lot of seafood, eat the rainbow of fruits and veggies (more veggies than fruit), mostly low carb and Organic
High does, whole food vitamin C
Terrasoul Camu Camu
Do more ayahuasca and psilocybin mushrooms
Talk to and ask God why this is happening. Remember that everything happens for a reason and what is it do I have to learn from this
Live like you are dying. Quit job if not loving it and find something that is fulfilling
LOVE, LOVE, LOVE