Comedian Tommy Chong, infamous for his part in "Cheech and Chong," in the 1970s, said Wednesday that he is treating his rectal cancer through the use of cannabis. "I have good news and bad news. First the bad news, the cancer came back and it is a real pain in the butt," he said on Twitter. "The good news is I now have to use more marijuana to treat the cancer." Chong, 77, said he would document his battle against the cancer on the "Chong and Chong" podcast. "Please wish me luck while I kick cancer's behind," he added. This is Chong's second battle with cancer. He was diagnosed with prostate cancer in 2012. US Weekly reported that Chong has been a big advocate of marijuana, crediting it for his treatment process. "I'm using cannabis like crazy now, more so than ever before," he told US. "I'm in treatment now. I've been - just the case either way, either I get healed or I don't. But either way, I'm going to make sure I get a little edge off or put up." Chong and Cheech Marin gained fame in 1971 for their comedy album "Cheech and Chong." They became the faces of pot with their films "Up in Smoke" and "Nice Dreams." The duo broke up in the late 1980s and reunited decades later for a comedy tour called "Cheech & Chong: Light Up America." Cheech wants to use this down time to focus on writing a sequel to the 1978 hit Up in Smoke. "It will be the same Cheech and Chong, just 40 years later." Cheech credits his wife for his tenacious spirit fighting against the disease. "My wife actually forbid me to die," he says of his wife Shelby Chong. "She said 'you are not leaving me.' "