Carole Malone has blasted Prince Harry for "waiting till his father had cancer to come and visit."
Prince Harry travelled from the US to the UK on Tuesday to visit his father after news broke that King Charles had been diagnosed with "a form of cancer."
The Duke of Sussex met with the King for no longer than 45 minutes before he headed back to his hotel and flew home the next morning.
Speaking on GB News Malone said: "When you have a dad who's 75, you know that medical things are going to be bad. That's true.
Carole Malone slammed the Prince for his brief visit
GB News
"You do not wait until he's had a cancer diagnosis to come and visit him.
"I keep on hearing 'Oh it's family they should put everything to one side. How can you put to one side the fact that this man Harry trashed his family for three years for multi-millions and now thinks he can fly back in here and people are going to go 'Oh well, it's family it's all good."
Journalist Nichi Hodgson, however, argued 'that's "growing up".
She said: "I just think that's growing up. People as children, say terrible things to our parents and we make horrific mistakes with them.
Prince Harry court visited the UK
Reuters"I've done it with my parents and then hopefully you get some time to put it right, which I have had."
Malon interjected: "You can't put much right in half an hour."
Hodgson said: "Whoever is advising Harry, please give him some better advice. Because it was done terribly.
Malone explained: "He doesn't listen to anybody that's part of the problem. They have a whole host of advisors who he keeps sacking."
GB News host Andrew Pierce explained: "What he could have done is gone to Sandringham discreetly.
King Charles was diagnosed with cancer GETTY
"None of us would have known. But instead, he announces before he's even on the plane, he's on his way to his father. That's why it's a PR game."
Buckingham Palace released a statement on Monday that revealed that King Charles has a "form" of cancer.
The statement read: "During The King's recent hospital procedure for benign prostate enlargement, a separate issue of concern was noted.Subsequent diagnostic tests have identified a form of cancer. His Majesty has today commenced a schedule of regular treatments, during which time he has been advised by doctors to postpone public-facing duties.
"Throughout this period, His Majesty will continue to undertake State business and official paperwork as usual.
The King is grateful to his medical team for their swift intervention, which was made possible thanks to his recent hospital procedure.
"He remains wholly positive about his treatment and looks forward to returning to full public duty as soon as possible. His Majesty has chosen to share his diagnosis to prevent speculation and in the hope it may assist public understanding for all those around the world who are affected by cancer."