Rebecca Chisholm, 24, remains in intensive care with her mother Wendy Skelton by her side.
The Nottingham lass tragically suffered multiple skull fractures and a brain injury following the incident which happened just a day before she was due to celebrate her birthday.
Rebecca, a primary school teacher who lives and works in the Middle Eastern emirate, is said to have told her mother she thought she was going to die as she lay severely injured.
Ms Chisholm was airlifted to a state-run hospital and twice underwent surgery to stem the bleeding on her brain.
And now the distraught family of the 24-year-old face a huge £60,000 healthcare bill on top of a £30,000 medical flight to get Rebecca back to the UK.
A GoFundMe page set up to help with the costs has been launched by family friend Lyudmila Davey.
Donations have already reached the £23,000 mark in just 24 hours.
Organisers of the page hope to reach a total of £30,000 to help the family in their bid to get their much-loved daughter home.
Ms Chisholm cannot leave the United Arab Emirates until her medical bills have been paid, the GoFundMe page said.
It is thought Rebecca had insurance through the school she worked at but the firm is refusing to cover the costs because the accident happened while riding a horse, Ms Davey told Mirror Online.
She added: “They are very lovely people. Wendy is a very kind person. We are so grateful for everyone’s support.”
The GoFundMe page added that Ms Chisholm began to regain consciousness on May 12 but was still in danger and faces a lengthy recovery and uncertain future once she is back home in England.