Chlorine is a powerful disinfectant against pathogens but as a pro-oxidant it will probably do more harm than good to cancers.

Other treatments are much more promising: fenbendazole, paw paw, essiac, olive leaf, curcumen, Ivermectin, mistletoe, high dose vitamin D, vitamin C, EGCG, Melatonin, etc. Throw everything at it!