Harri has a rare disorder called Pontine tegmental cap dysplasia which causes muscle stiffness, speech and hearing problems, swallowing problems and other physical symptoms.
Mum Rebecca said intensive occupational therapy, physiotherapy and speech therapy can help improve symptoms but there are specialised therapies that may help Harri to walk.
Hippo therapy is done on horseback and helps strengthen core muscles and joints.
‘They only run it once a year because it’s so expensive,’ she said.
There will be a sausage sizzle at Office Works Jandakot on Saturday, August 17, from 9am.
It will be to raise money for Harri’s treatment and associated equipment.