A frog hit by a lawn mower in Mount Isa owes its life to animal lovers who worked to fly it across Queensland for life-saving treatment at a special Cairns frog hospital.

The common green frog was run over in April by a woman who was "very distraught", FrogSafe president Deborah Pergolotti told 9NEWS.

The frog suffered a "deep gash" to his back and the woman called a relative for help, who in turn contacted FrogSafe's Cairns Frog Hospital.

The group then coordinated a rescue effort, enlisting the help of a regional airline and an animal transport company to fly the frog to Cairns.

The injured frog is recovering in hospital. (Frog Safe / M. Wall)

"We were able to get on the flight on Monday (April 18), and by this stage he had gotten infected," Ms Pergolotti said.

"We knew something else was going on, too, because frogs aren't lying on the lawn in the middle of the day."

Ms Pergolotti said the frog required special treatment for his infection, and also had two parasites that needed to be removed.

"We're just finishing up cleaning up the second parasite before he goes back to Mount Isa," she said.

Ms Pergolotti said Regional Express Airlines and Dogtainers had helped ensure the frog could be treated.

"There is so much red tape now, but everyone persisted," she said.

A hopping good hospital

Ms Pergolotti said FrogSafe offered specialised knowledge about frog rehabilitation and received calls for help from locations across Australia and even internationally.

"We get calls from all over the country, and we've even got a few calls from overseas – Indonesia, Italy, the US," she said.

People called up about wild and pet frogs, Ms Pergolotti said.

Frog rehabilitation is a specialised area, and many veterinarians do not know much about them because they are not a "standard animal", she said.

"It's still very much a grey area, it's not established enough, there might be a few vets that have an interest – but they're not a standard animal that much is known about," she said.

Pet green tree frogs in Russia. (AAP file image)

"It's a very specialised area of care… what we've tried to do is to pave the road so that other people can follow down the same pathway."

Some wildlife rescue groups contact FrogSafe for advice too, she said, and FrogSafe also offers a training course that people can attend in Cairns.

Ms Pergolotti said she had worked in frog rehabilitation for 17 years, with a total of 24 years of experience in general frog care.

State legislation also affects FrogSafe's work, she said, with laws preventing frogs from being flown out of New South Wales or the Northern Territory. In these cases, FrogSafe uses photographs to recommend treatment.

Frogs in need

Treating frogs is further complicated by the fact that injured animals often presented with secondary problems, suffering from disease and parasite as well as visible injuries such as a broken leg, Ms Pergolotti said.

Chemicals in their environment tend to weaken their resistance to disease and parasites, she said, and some frogs had presented to the hospital with cancer and malformations.

The wider problem of chemical use and general human impact on frogs was leading to a decline in populations, with FrogSafe working to reverse these declines.

"If we don't start saving individuals then these populations are going to be wiped off the earth," she said.

A green tree frog in Sydney. (AAP file image)

Under Queensland law, the Mount Isa frog must be released back into his environment, and the opposite is the case in New South Wales, Ms Pergolotti said.

"I would rather see Queensland go with the system in New South Wales, where they are required to stay in captivity. I believe they deserve to be kept in captivity and used in captive breeding program," she said.

Common green frogs usually reach their full size of about 10cm at 10 years of age, and have been known to live for up to 30 years in captivity, Ms Pergolotti said.

However, threats from predators, parasites and chemicals are degrading wild populations, and frogs are lucky to live until 10 in the wild.

How you can help

FrogSafe welcome donations of money and supplies, and Ms Pergolotti has also urged people to protect frogs in their own communities.

"If I had to give one take-away message to the public, that message would be stop using chemicals. They are what is starting off the whole degradation of the frog population and other animals," she said.

Neonicotinoid chemicals were of particular concern, and are used by pet owners, gardeners and the agricultural industry to control insects, she said. They have been linked to bee die-offs overseas.