I could probably try sending you the Aquaphor. But as it seems to be somewhat "banned" in Australia, not sure what happens when they open it at customs. They might not let it go through.
About HC, there surely are HC creams in Australia?! Maybe not "Prevex HC", but hydrocortisone creams in general.
I really can't tell a difference with the treatment (including HC) so far. I have no idea if there is less inflammation or less build up.