I would suggest rectal adminstration of ozone, colloidal silver and oleander extract (which you can purchase in liquid supplement form from http://www.sutherlandiaopc.com) or else make yourself for pretty much pennies (see: http://www.tbyil.com/oleandersoup.htm) plus an overall anti-cancer protocol which addressed lifestyle, diet, stress, cleansing, herbs and other supplements and more - such as this one http://www.tbyil.com/anticancer.htm). Rectal administration of those items should directly impact the rectal cancer as well as get into the blood stream and travel directly to the the liver via the portal vein system and then on to the heart to be taken to the lung cancer and any other cancer sites as well as be returned to the rectal cancer - and also addressing any circulating cancer cells in the blood.