Originally posted by Keebler Milf:

The mostly permanent solution is crafting wisp torches. They clear out a large area where they're lit. Though I've found even with those, they don't clear out the fog above them. So if you have a tall building you need more above too.

Those get targeted by enemies though, and I would need to literally build hundreds of them just to clear 1 mistlands zone. Not a viable solution for me.