Some specialists like Psychiatrists do tele-psychiatry, but I would think that needs to be organised before you left Australia?  I would think it would have to be organised from referral from your Doctor, so may be worth contacting Medicare and finding out if you can do that even though you're overseas.  Not quite sure how that works.  I don't think many Psychiatrists do tele-psychiatry, let alone with a 'new' patient.

I did enquire with a Pain Specialist who did appointments via Skype or the like, but I would have needed to have an initial session or two, and then he would decide if I was suited to sessions like that for ongoing treatment (either regular or as needed).  Travelling to sessions is a major issue for me, and very few therapists will do sessions at home - and am yet to meet a Psychiatrist who will !

Can you contact your Doctor or specialist in Australia for some help on this?

Here is a link about tele-psychiatry from the RANZCP website - Royal Australian & New Zealand College of Psychiatrists - https://www.ranzcp.org/Mental-health-advice/guides-for-the-public/Telepsychiatry.aspx

and also: https://www.ranzcp.org/Publications/Telehealth-in-psychiatry.aspx

or even: https://www.ranzcp.org/Files/Resources/RANZCP-Medicare-benefits-for-Telepsychiatry.aspx

I hope you find help while travelling.  Take care.

JJ.