Actor Michael Douglas appeared on the “Late Show with David Letterman” and revealed about his stage 4 throat cancer diagnosis on Tuesday evening.

Douglas said that at present, he is going through several treatments for his throat cancer and doctors revealed that the actor had almost 80% chance to recover from the disease completely giving Douglas a new hope. His TV appearance at the late night show is to promote his new movie, which is “Wall Street: Money Never Sleep.”

The actor press representative Allen Berry said that Douglas is undergoing treatment at the Manhattan’s Sloan Kettering Cancer Center. Berry likewise revealed with the ABCNews.com that the actor’s cancer is located at the base of his tongue and the diagnosis is conducted in order for Douglas to recover from it.

According to Douglas, his announcement in the late night show that he was diagnosed on early summer, he had been experiencing soreness from his throat and decided to seek for medical help. When he was asked regarding the severity of his disease, Douglas just answered that his cancer is above his neck and giving him hope to survive.

He also admitted that before he use to drink and smoke a lot, and reports from the New York Times affirmed that this type of cancer is commonly acquired from too much drinking as well as smoking.

Early this year, the actor likewise appealed to a judge regarding the case of his son Cameron who is sentenced to five-year imprisonment because of dealing drug. Douglas had appealed to the judge to show empathy because there are drug histories and alcohol abuse in the family as well as the actor himself had experienced alcohol abuse treatment back in 1990.

In addition, he stated that currently had completed his first week of chemotherapy and radiation treatments that is set for at least two months. According to him, so far the treatments are extreme.