Hi...
I would continue the dust baths with the fungal powder. I, personally, wouldn't rub any cream on her face. She could possibly ingest it by licking her nose. It could be most likely poisonous to eat.
The mounting just shows who is dominant, but to be on the safe side you need to check their little bottom ends. If one is a male there will be a space between the rectum and penis (space of smooth skin). If the "parts"
are basically all together then you have a female.