Doctors say President Trump's health is "continuing to improve" and that he can return to the White House as early as October 5.

"From the last time we talked, the President's situation continued to improve. As for any disease, there are ups and downs in treatment," said Sean Cloney, President Donald's doctor.

Conley said the morning of October 1, the President had decreased oxygen levels and needed additional oxygen at the White House for about an hour.

Several studies indicate that dexamethasone may improve survival in hospitalized patients with a critical condition resulting from nCoV infection, who need oxygen supplementation.

Meanwhile, Sean Dooley, another doctor on Trump's medical care team, said the White House boss "has not had a fever since October 2 morning, vital signs have stabilized.

According to Dooley, the President "did not complain about breathing difficulties".

Doctors also provided more information that Trump received a second dose of Remdesivir.

"Our plan for today is to help the President eat as much, get out of bed as possible," said Dr. Brian Garibaldi.

Earlier that day, White House security adviser Robert O'Brien said President Trump is feeling very good and wants to return to Washington to work.

"I spoke to White House Chief of Staff Mark Meadows this morning and the good news is that the President feels very well. He wants to go back to the White House and work but I think the President still needs to stay at Walter Reed for at least one.

When asked if there would have been any discussion about the transfer of power if President Trump's situation worsened, O'Brien replied: "No, this hasn't been discussed.

"We have plans for everything," he added.