Charlie Sheen's Addiction Is a 'Form of Cancer,' Dad Martin Says

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"You have to have an equal measure of concern and love and lift him up," he says of his troubled son.

Martin Sheen says his troubled son Charlie's addictions are not unlike cancer.

"He's an extraordinary man," Martin tells Sky News (via TMZ) of his son, 45. "He's doing well, we pray for him."

"If he had cancer, how would we treat him?" adds Martin, who has previously helped his son seek treament. "This disease of addiction is a form of cancer. You have to have an equal measure of concern and love and lift him up."

"You realize that we're not all on the same journey all the time.. we have to love that much more, be that much more present," adds Martin.

Charlie says production is due to resume on Two and a Half Men at the end of this month (the show went on hiatus after he sought treatment in January).

“People need to understand how supremely grateful I am that someone stepped in here," he told radio host Dan Patrick earlier this month. "I don’t want to say who, but you know, basically, Viacom showed up at my house and said, ‘Dude, it’s getting really obvious and we’re really worried about you. We don’t give a rat’s tooey about the show. We care about your health.’ So, they came in and just man to man and said, ‘We have to shut it down.’ ”