He is now undergoing regular chemotherapy and radiation sessions. Representatives of the actor said that the treatment will be for eight weeks and medical experts says that Douglas's prognosis for survival looks decent.
Meanwhile Dr. Warren Line of the Disney Family Cancer Center at Providence Saint Joseph in Burbank says that a worst case scenario for Michael Douglas would affect his voice.
"It's generally the soft tissue that could be damaged by the radiation," says Dr. Warren Line. If that is the case then the actor might lose his voice and iconic vocal character.