I have experience from my uncle about vitamin B17 which helped him a lot with cancer. You can´t get it in common but you can get some from apricot seeds, but carefully with it they includes a little portion of kyanid (best if you make plan for consumption, he using 30 per day). So i wanted to share my experience, i hope its help you could try it with your current therapy and maybe its help you....
There is more people but you could find them by your selfon youtube and like that...
But weight matter ! so sonsume wisely ! for children 7 engouth i think