THE King is "getting on" and "doing his best" following his three-night stay in hospital, Queen Camilla has revealed.
Camilla stood by her husband's side on Monday as he left The London Clinic after treatment for an enlarged prostate.
A day later Camilla was all smiles during a Windsor Castle reception for the centenary celebrations of the world's most famous dolls' house.
And today Queen Camilla gave the health update as she officially opened a new Maggie's cancer support centre at the Royal Free Hospital in north west London.
On arrival, Camilla was asked by donor Sir Gerald Ronson how Charles is recovering following his prostate surgery.
The Queen replied: "He's getting on, doing his best."
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When Dori Dana-Haeri, who led the fundraising effort for the new centre, said she was "so pleased" Charles was well, the Queen nodded as she said: "Thank goodness."
Meanwhile, supporter Sir Michael Pakenham said: "All best wishes to His Majesty for the very best recovery."
Camilla responded: "Thank you very much, that's very kind. I'll pass it on."
She was then introduced to Dame Laura Lee, Maggie's Chief Executive and Stuart Gulliver, Chairman of Maggie's.
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He's getting on, doing his best.
Queen Camilla
She met with the architectural team, including Daniel Libeskind, as well as staff, volunteers and visitors.
The 76-year-old also heard from families and friends who Maggie's has supported.
Maggie's Royal Free is the twenty-fourth centre in the UK providing support for people with cancer, from treatment side effects to financial concerns.
The Queen became President of Maggie's in 2008.
"I think all hospitals should have a Maggie's," Camila told Rebecca Longmate, the Royal Free's director of nursing.
Camilla was making her first visit to a centre as Queen and has visited many across the country.
She joked with a group of donors, telling them: "I try to get around them and another one goes up - I never can catch up."
It comes after Charles, 75, smiled and waved to members of the public as he left hospital after spending three nights receiving medical care.
Buckingham Palace said he would now have a "period of private recuperation".
Camilla had arrived at the hospital ahead of the King being discharged.
She had visited her husband every day since he was admitted on Friday.
Buckingham Palace said in a statement: "The King was this afternoon discharged from hospital following planned medical treatment and has rescheduled forthcoming public engagements to allow for a period of private recuperation.
"His Majesty would like to thank the medical team and all those involved in supporting his hospital visit, and is grateful for all the kind messages he has received in recent days."
The King underwent a corrective procedure for the benign condition.
Charles could reportedly take up to a month off from public duties as he recuperates.
He left The London Clinic a few hours after the Princess of Wales was discharged from the same hospital, almost two weeks after undergoing abdominal surgery.
Kensington Palace said she "is making good progress" after a 13 day stay in the clinic.
Charles spent time at his daughter-in-law's bedside before his own treatment.
Kate, 42, is not expected to return to official duties until after Easter.
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The King was diagnosed with the benign condition on January 17 while staying at Birkhall in Scotland after going for a check-up because he was experiencing symptoms.
He is understood to have wanted to share the news to encourage other men to get themselves checked.
HEALTH WOES
How the health scares facing Charles & Kate unfolded:
Tuesday, January 16: Kate, 42, is secretly admitted to The London Clinic and undergoes abdominal surgery.
Wednesday, January 17: Kensington Palace announces the princess' operation and says she will remain in the private hospital for 10-14 days.
Over an hour later, Buckingham Palace announces the King, 75, is to have treatment for a benign enlarged prostate and will be admitted to hospital in a few days.
Thursday, January 18: Prince William spends time at his wife's bedside, driving himself away from the back entrance during the low-key, private visit.
The Queen says the King is "fine" and "looking forward to getting back to work" during a visit to the Aberdeen Art Gallery.
Friday, January 19: The King flies back from Scotland with the Queen and heads to his Sandringham estate in Norfolk to rest ahead of the procedure.
Monday, January 22: The Queen tells 86-year-old well-wisher Jessie Jackson that the King is "fine", and thanks her for asking, while she carries out engagements in Swindon.
Camilla urges the King to take it easy. An insider told The Sun: "The Queen has told him he needs to slow down a bit."
Thursday, January 25: The King arrives back in London from Sandringham ready for his treatment.
Friday, January 26: The King is admitted to The London Clinic for treatment for an enlarged prostate and also visits the Princess of Wales, who is recovering in the same hospital.
Queen Camilla emerged after the operation to tell reporters "he's fine, thank you" before a source said the King was "doing well".
Saturday, January 27: Queen Camilla appears in good spirits as she leaves hospital on the King's second day of recovery.
Sunday, January 28: Her Majesty visits The King on his third day in hospital.
Monday, January 29: Both the King and Princess of Wales leave the London Clinic.