OK, I'm reading about Tom Tobin who was one of the mountainmen scouts of the Nineteenth Century. Apparently besides being adept at tracking, farming, hunting (game & people), he also picked up skills as a frontier doctor. Here are somethings out of the book (which I bought from the Pueblo Historical Society):
"...powdered sagebrush leaves were a remedy for diaper rash and any moist area chafing. Boil the sagebrush leaves in water and you have a strong disinfectant and body cleaning wash. A tea made from the twigs, bark and pods of the mesquite plant will inhibit diarrhea and other gastrointestinal tract inflammation, including ulcers and hemmorhoids. Boil just the mesquite pods for an eyewash that helps any conjunctivitis of any type and will cure pink eye in children or livestock. Then there is silver sage, which is not a true sage but a small wormwood that grows everywhere in the San Luis Valley. Grind up some silver sage leaves and twigs, place in a glass jar with enough Taos Lightning to cover, shake the jar every few days, and in about a week you have a tincture which, when diluted with twenty to thirty drops of cold water, will effectively retard acid indigestion. Make a simple tea from the silver sage leaves and the result is a strong diuretic and a mild laxative. And, always, there is the marveloous yerba mansa plant which can be used to treat infection of the mouth, lungs, and urinary tract. It is also an astringent and a diuretic, and is aspirin-like in its anti-inflammatory effects, which makes it effective for the treatment of arthritis. It is anti-bacterial and anti-fungal as well as an excellent first aid for abrasions, contusions; also yerba mansa will heal boils, cure athlete's foot and other fungus-type infections, including vaginitis. It is effective against gout, reduces fever, and makes a good enema or douche solution. This versatile herb is virtually a medicine chest in itself."
I don't vouch for any of the above, but it's fun to read.