If past bushfires are anything to go by, the mental health impact of the current emergency could be felt for up to five years.
That's the view of National Mental Health Commission chief Christine Morgan who on Sunday welcomed the federal government's announcement of $76 million for mental health support.
"This is a particularly distressing time for everyone across the country," she said.
"We know that the impacts of natural disasters extend beyond the end of emergency, with mental health impacts of the 2009 Black Saturday bushfires being felt up to five years post-disaster for some people.
"Because of this, it is important that the mental health and wellbeing of Australians is supported immediately, as well as providing ongoing long-term interventions."
She said the three main concerns were anxiety, depression and post-traumatic stress disorder for those on the bushfire frontline.
People impacted by the bushfires would require three types of support, which would be funded under the plan, she said.
Psychological "first aid" would help people deal with their immediate need for security and safety, to have strategies to cope, and to enable them to start to regain a sense of control.
Secondly, psychological support services would be available through Medicare.
And thirdly, communities would be supported to run activities to help mental health and healing post-bushfires.
Ms Morgan said the bushfires were having a ripple effect across communities and the nation.
"In remarkably distressing times like this, we should expect to feel different," Ms Morgan said.
"If you are feeling overwhelmed, stressed or sad please reach out for support. It is really important to talk and connect with others."
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Australian Associated Press