While expatriate medical insurance policies may not be able to pay for a cure for dementia, as one has not yet been developed, they could assist with other forms of support.
Admiral Nurses Direct lead nurse Ian Weatherhead said: "The anti-dementia drugs that are out at the moment – they don't stop it, they don't reverse it and they certainly don't cure it."
However, he suggested that psychological support for the sufferer, their carers and family members can be important.
This can help them understand the disease and the changes it will cause, the specialist continued.
Furthermore, this kind of assistance could help people to encourage independent living among the person with dementia, while helping them to respond to situations and manage the changes the disease causes, Mr Weatherhead said.
Dementia typically occurs in people over the age of 65 and becomes more common the older people get.
Women have a slightly higher risk of developing the condition than men.