In the highest grade, melaleuca oil is many more times effective than aloe for burns, bites,ect. Mink oil, comes in various grades. And it is avail. Also cactus juice, aloe, dodder, good old cattail root paste, english plantain is good as a poultice. I'm thinking mostly succulents.
White willow seems to be the best, but all have a chemical called salicene.
So whatever you use aspirin for you can substitute willow bark for. The leaves work too but are a different strength. I would like more information on preparing this too. I'm not sure of exact doses. For a mild sedative a bundle of young tiny branches steeped in boiling water is very soothing.