Glioblastoma More Condition_symptoms My Father Has A Glioblastoma Brain Tumour. Can Anybody Recommend Any Alternative Treatments?

My father has a Glioblastoma brain tumour. Can anybody recommend any alternative treatments? - glioblastoma more condition_symptoms

I wonder if there is no means of herbal or homeopathic someone could suggest, or perhaps suggest some websites. Has anyone out there had this once, or is there a doctor there that want to offer alternatives to radio-and chemotherapy unofficial, has the best conditions for further prediction?
Serious replies only please, because this is very disturbing to me. Thank you.