Related: viewtopic.php?f=48&t=44417
Healing takes time and it's annoying. I'm fine with that, but many aren't.
My suggestion is to involve the Ring of Brodgar in this process, therefore making its presence more meaningful in the game, even if just remotely.
The idea is to allow healing of either only serious wounds or all of them after a pilgrimage from the ring of brodgar to a charter stone in any of the four corners. It's a long journey so I'm sure it's balanced. With the exception of pc claims on the four stones I don't see how this could be exploitable. Placing claim limitations would be necessary though, as well as removing the claim currently on the ring of brodgar, of course.
A further minor idea is to give players the option of an "Emergency Patch": if, for example, you have 32 hhp serious wound damage, you would have the option to heal 16 hp instantly, and permanently lose another 16 hp due to improper treatment, thus gaining a permanent 16 hp "Scar" token on the wounds menu. It's optional.