Dr. Sam Chachoua appeared in a recent episode of Real Time with Bill Maher to talk about his time in Mexico with Charlie Sheen

Charlie Sheen Blasts Doctor Who Claims to Have Cured Him of HIV and Even Injected Himself with Star's Blood

Charlie Sheen is now speaking out against the Mexico-based doctor who claims to have cured the actor of HIV using a medically contested treatment involving goat milk.

Dr. Sam Chachoua appeared on Real Time with Bill Maher on Friday and told the host that he spent months with Sheen in Mexico to cure Sheen’s disease. But a recent tweet from the Two and a Half Men star suggests otherwise.

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“Dr Sam I was with u in Mexico for 1 day,” Sheen tweeted Sunday. “It’s illegal for u to practice in U.S.A. where u treated me for 2 months.”

Along with the tweet, Sheen included a photo of Pinocchio with a long nose, seemingly suggesting the doctor is lying.

During his interview with Maher, Chachoua said Sheen was “dying” when the two met in Mexico.

“Charlie had severe encephalitis he had severe liver failure from the medication – and the alcohol, probably,” he said. “He was just in a horrible, depressed way. And as soon as I saw him I had to fix the liver failure, I had to try and clear the encephalitis, which was killing him. And I managed to do that.”

Sheen recently appeared on The Dr. Oz Show to reveal that he had stopped taking his HIV medications and sought alternative treatment from Chachoua in Mexico.

Oz shared part of an audio conversation he had with Chachoua in which the doctor claimed that had cured Sheen and injected some of the actor’s blood into himself.

However, Sheen’s manager, Mark Burg, previously told PEOPLE that Sheen resumed his traditional medications shortly after the episode was taped.

“Charlie is back on his meds. He tried a cure from a doctor in Mexico but the minute the numbers went up, he started taking his medicine,” Burg said. “He said he would start on the plane on the way home and that is exactly what he did.”

Chachoua did not address why Sheen would go back onto his medication despite his alleged improved health. But the doctor spoke highly of his alternative “Induced Remission Therapy” treatment, which he developed after studying the milk from goats he say had a virus that can destroy HIV.

“There is a cure out there. There’s a therapy that’s so much better than conventional without side effects,” he told Maher. “I’ve used it in countries. I’ve cured countries!”

Many in the medical community have rejected Chachoua’s ideas, with Mark Harrington, executive director of New York’s Treatment Action Group, labeling him a “quack” to BuzzFeed News.

“This kind of high profile pumping of alternative medicine stories linked to celebrities can harm other people by persuading them to do damaging things that affect their health,” John Moore, a professor of microbiology and immunology at Weill Cornell Medical College, told the outlet. “This is a classic example of false hope syndrome. People are persuaded to do wacky stuff that stops them from doing the right stuff.”

Chachoua could not be reached for comment on Sheen’s tweet, but a post on his website anticipated backlash from the actor’s Dr. Oz appearance.