Internally or externally?
I have not, and I don't find any mention in the archives. I find a reference to a U. Maryland study, but cannot find the study.
It seems a little pricey, ($24/pint on amazon) but if it's safe (I haven't dug into that)
* it might be worth a try.
Keep us posted!
* I just did a quick glance. As with most things, black seed oil is not without risks.
black seed oil risks
Caveat Emptor
Doc