There is this product called BIRM (biological immune response modulator) that is widely used in South America, mostly in Ecuador. It boosts the immune system. It is nothing but an extract of the wild plant Dulcamara, found in remote places of the Brasilian-Ecuadorian Amazon forest. I heard about in in Spanish TV network Univision in a news program where several cancer survivors were interviewed in Ecuador and they had been taking BIRM for many years with supposedly positive results. My mother is a cancer survivor and I decided to buy it for her. The problem is that it has not been approved for sale in USA due to FDA lengthy approval proccess which could take years,not to mention the millions that farmaceutical companies invest in stop this kind of natural plant-extracted remedies to reach the US market,for obvious financial reasons. My mother is well now and her blood count couldn't be better, it's actually better than mine. I order the product directly from Ecuador, paying with credit card. i do not list the seller because it will be deleted so do your research thru google.
Also there is a cancer clinic in tijuana where they inject Ozone into the blood. It works like when people donate plasma, blood exits and re-enter the body,but in the inter they infuse Ozone into the blood, which is widely known in Mexico and Chile to work wonders for cancer patients.
It is not cheap, it ran into the thousands of dollars but it's worth it.
I wish you the best of lucks.