Liz Truss has claimed that No10 was a "prison infested by fleas" and that some people blamed Boris Johnson's dog Dilyn.
In an extract of her new book, Ten Years to Save the West, serialised by the Daily Mail, the former Prime Minister said she spent her first weeks in the job "itching" because of a flea infestation.
She wrote: "The place was infested with fleas. Some claimed that this was down to Boris and Carrie’s dog Dilyn, but there was no conclusive evidence.
"In any case, the entire place had to be sprayed with flea killer. I spent several weeks itching.”
Liz Truss claimed that some believe Boris's dog Dilyn was responsible for the 'flea infestation'
PA
She also compared her time residing in Downing Street as being a "prisoner".
Truss claimed the most difficult thing to get used to was "just being stuck there".
She described how if she wanted to go on a run, she would be driven to a quiet part of Hyde Park and this felt like a prisoner being allowed to exercise in the yard.
The ex PM said that the lack of support she received was "pretty shocking".
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Liz Truss compared her time residing in Downing Street as being a "prisoner"
PA
She claims she was left without any medical help and that she was left to "organise my own hair and make-up appointments".
When discussing the Queen's death, Truss revealed that she broke down into “floods of tears” and went into a “state of shock".
The news of the Queen’s death came on her second full day as PM, leaving her asking: “Why me, why now?”
Truss held her second and final audience with Elizabeth two days before her death and said that there “simply wasn’t any sense that the end would come as quickly as it did.”
Recalling the meeting where the Queen met and appointed Truss, she said that the monarch was “standing up as she greeted me in her drawing room.”
She continued: “I was told she'd made a special effort to do so but she gave no hint of discomfort throughout our discussion.
“This was only my second one-on-one audience with her. On the previous occasion, after I'd been removed from a different job in the government, she'd remarked that being a woman in politics was tough.
“For about 20 minutes, we discussed politics - and it was clear she was completely attuned to everything that was happening, as well as being typically sharp and witty. There simply wasn't any sense that the end would come as quickly as it did.”