The father of Melbourne 19-year-old Holly Bowles says his daughter remains on life support, as Holly and her friend Bianca Jones fight for their lives after drinking tainted alcohol in Laos while on a backpacking holiday.

Drinks laced with methanol have turned a dream holiday into a living nightmare for two Aussie teens and their loved ones.

Two Australian teenagers, fighting for life in Thailand, were travelling together on a dream holiday when they suffered suspected methanol poisoning in Laos. The families of the two 19-year-old women, originally from Melbourne, have flown to the country and rushed to their bedside.

The two Australian teenagers who have been left fighting for their lives after reportedly consuming cocktails laced with methanol while travelling through Southeast Asia have been named.

Holly Bowles's parents are by her side in a Thai hospital as the Melbourne woman fights for life after drinking tainted alcohol.

More than 18 travellers have either been hospitalised or died as a result of methanol poisoning from four bars and hostels in Laos, where two Australians partied before they wound up fighting for life in hospital.