The lakeside clinic offers a series of month-long recovery programmes and has 15 medical experts. Clients have access to a chauffeur and private chef. Ferguson is believed to have spent several weeks at the clinic before visiting the French Alps and the United Arab Emirates.
When emails she sent were made public as part of the Epstein files, it emerged she had maintained her close friendship with the paedophile after he was convicted of a sex offence.
The emails detailed her financial issues, including her requests for help with her debts, with her decision to visit with her two daughters, Princess Beatrice and Princess Eugenie, five days after Epstein was released from prison.
Jan Gerber, the founder of the Swiss clinic, describes it as a “sanctuary where individuals can receive the highest standard of care, free of judgment”.
The facility helps treat “addiction, burnout, depression, anxiety and trauma” and charges around £110,000 for a three-day “comprehensive check-up” or £350,000 for a one-month residential programme.
Ferguson, the former Duchess of York, has visited the clinic previously, and appeared in its promotional video alongside its founder. She claimed she had been diagnosed with post-traumatic stress disorder (PTSD) and attention deficit hyperactivity disorder (ADHD) there.
Ferguson previously told the Telegraph: “I am not embarrassed to reveal the clinic offered me a sanctuary, renowned as it is for its bespoke, cutting-edge treatment for those grappling with mental health and addiction issues – particularly those whose struggles are often hidden behind the facade of a public role.”
A representative of Ferguson was approached for comment.
Sign up to Herald Premium Editor’s Picks, delivered straight to your inbox every Friday. Editor-in-Chief Murray Kirkness picks the week’s best features, interviews and investigations. Sign up for Herald Premium here.