A Melbourne woman has criticised airline V-Australia after her son became seriously ill on a flight from Phuket, Thailand.

Kate Burt says her 18-month-old son started to choke after having a febrile convulsion.

She says airline staff initially refused to ask if there was a doctor on the plane to help.

Fortunately, two Sydney paramedics came to her assistance.

But Ms Burt says there was no oxygen mask in the plane's medical kit, making it difficult to revive the child.

"Because they didn't have this mask, this is what the paramedics told me, he was not revived for a long time," she said.

"It actually looked like he was going to die."

Ms Burt says her son was taken to hospital when the plane landed and has made a full recovery.

She says the airline staff were too concerned with going through procedure.

"[It] felt to me that the paramedics were doing everything they could to save my son's life and that the airline were doing what they were told to do," she said.

She says the airline's emergency response was inadequate.

"They didn't know how he was after that. They saw this serious event and they didn't follow up," she said.

V-Australia has rejected claims that it did not respond properly to the emergency.

V-Australia says the crew gave the child oxygen and monitored his condition, after seeking advice from health workers on the ground, as well as arranging for a paramedic to meet the plane in Phuket.

The airline also says the first aid kits were complete.