Wollongong Hospital's oncology ward, and the Illawarra Cancer Care Centre, have been beneficiaries of the fundraising campaign since 2013.

In that time more than $320,000 has been raised to improve the comfort, care and well-being of people going through cancer treatment - and those who care for them.

ICCC cancer outcomes manager Rebekah Costelloe is taking part for the first time in 2019.

"I see patients in the hallways and wards and I think about the stories behind these people, and the impact it has on every part of their lives," she said.

"For me giving up alcohol for the month is a really simple thing I can do to raise awareness, and to help make patients more comfortable."

Radiation therapist Melissa Newton has seen firsthand the benefits of the projects funded by Dry July.

"For instance getting a music system in the radiation bunkers might seem like a small thing, but we've had patients request everything from Elvis to Shaggy to Mariah Carey," she said.

"It takes them away to another place during the treatment."

For the past two years, Dry July funds have been put towards an ambitious project to enhance patient waiting areas across the centre, to make them less clinical and more hospitable.

With the design now complete, work will start on the reception waiting area in October, before moving on to other areas.

To support this year's fundraiser visit www.dryjuly.com and search for Wollongong Hospital.