In desperation to cope with her ice-addicted teenager, one Rockhampton mother has spent more than $3000 to build an in-house cage.

The woman said after watching her now 17-year-old son struggle with the addiction for years and finding no one to help, she didn't know what else to do.

A photo of the home-made cage a Rockhampton mother has built to house her ice-addicted son. Credit:Contributed

"I am just one person begging for help and there is no one to help us," she said.

"You know your son is going to end up dead, or severely hurting himself or someone else.