Kim when I had hemorrhoids after DD3 was born, I got something called "proctofoam" which is also meant for fissures. It doesn't heal it exactly, but it provides pain relief, and I found it was WONDERFUL! Not sure if it would be marketted under the same name in Aus, but it would be worth checking into anyways. I believe it is available OTC. Can't remember for sure - my midwife got it for me. Hope you find some relief! That kind of pain is absolutely miserable.