Margaret Loughrey, 48, from Strabane, Northern Ireland, won her €32 million prize in December 2013. Jobless at the time and living on benefits, Loughrey scraped together the price of a ticket and got an early Christmas present when her Lucky Dip ticket lived up to its name.
Speaking just after her big win Loughrey vowed to use her newfound wealth to good to help others.
The generous winner's own life took a turn for the worse three weeks ago when the Western Health Trust detained her in hospital.
Speaking on Friday, her solicitor Richard Campbell told a reporter from The News Letter: "I was instructed by Margaret to lodge an appeal against this decision to the Mental Health Review Tribunal."
At this time it is unclear why the Western Health Trust wished to detain the EuroMillionaire and a Trust Spokesperson declined to comment on the matter due to patient confidentiality.
Now that Loughrey has been released from the Trust's care the legal proceedings have been dropped.
Loughrey's €32 million win is the largest prize to be claimed by a Northern Ireland player, but the biggest EuroMillions Jackpot ever was won on August 10, 2012, when Adrian and Gillian Bayford from Suffolk, England, won a whopping €190 million.