Shouldn't patients have the right to choose the treatment of their choice for certain illnesses/diseases?

http://www.alive.com/528a2a2.php?subject_bread_cramb=116 Please read this link first. Shouldn’t patients have the right to sign a waver/agreement for an unapproved treatment (to protect from a law suit if the treatment does not work or harms the patient) as their first choice option? Take cancer for example, for the most part only chemotherapy, surgery and radiation is used as the first treatment option and california even has a law that makes it illegal for a doctor to use any other treatment for cancer. Shouldn’t we have rights to treat our own illnesses our own way and have more first choice options?