Marijuana is a plant that has a psychoactive ingredient in it called THC. Many doctors recognize the health benefits cannabis can serve. “One of the most documented uses of medical marijuana is in the treatment of pain. Medical marijuana may be a better painkiller than narcotic painkillers, like oxycodone, with less potential for addiction,” says WebMD Chief Medical Editor Michael W. Smith, MD. Support by doctors varies from what kind of doctor they are. The most supportive doctors of medical marijuana are oncologists. An oncologist is a doctor who specializes in diagnosing and treating cancer using chemotherapy, hormonal therapy, biological therapy, and targeted therapy. Eighty two percent of oncologists see the medical value of cannabis. These doctors see the day to day pain a cancer patient goes through. They recognize that the medical marijuana helps ease the pain of chemotherapy and can help boost the appetite of a patient so they do not become weak and unable to receive such strong chemotherapy treatments