The not-for-profit program, run by the Humour Foundation, aids the recovery of sick children using humour therapy.

The members work to make children in hospitals all over Australia laugh or smile, lifting pressure off both the patients and their families.

General practitioner, medical director and co-founder of The Humour Foundation Doctor Peter Spitzer (aka Dr Fruit-Loop) said international research has shown the physical and psychological benefits that laughter brings patients.

"This ranges from a positive impact on the immune system through to a reduction in stress and pain,” he said.

The Commonwealth Bank’s Staff Community Fund has raised money and given donations to the Clown Doctors for the past 15 years.

“We’re having a fun day to raise awareness and to raise funds,” Eaglehawk Commonwealth Bank branch manager Jacki Leed said.

At Friday’s fundraiser, the bank staff dressed as clowns and held a sausage sizzle and a raffle to raise much needed money.

Donations to the Clown Doctors can be made during April at the Eaglehawk Commonwealth Bank or online at www.commbank.com.au/clowndoctors