An extract made from the oleander plant is over 90% effective against all types of cancers and has shown to be very effective against prostate cancer. I would invite you to read the Oleander Series of Articles at the top right of the following page:
http://www.tbyil.com/articles.htm
This Oleander extract can be obtained at http://www.sutherlandiaopc.com or you can make it yourself:
http://www.tbyil.com/oleandersoup.htm
Together with the Oleander extract, the Natural Anti-Cancer Protocol should be implemented. This addresses the cancer from its source, an impaired immune system.
http://www.tbyil.com/anticancer.htm
As you will read in the Natural Anti-Cancer Protocol, he must address his entire lifestyle and eliminate all unhealthy habits. Diet is of the utmost importance. He should immediately eliminate sugar from his diet as cancer feeds on sugar. The soda he is drinking is doing him harm, whether it be regular (with sugar), or diet, which contains harmful sweeteners.
I would in no way opt for conventional treatments such as chemo and radiation. These do nothing but destroy the body and severely compromise an already weakened immune system.
I wish you my very best,
Luella May