>>15516025willow bark is where aspirin comes from, but willow bark tea is much easier on the stomach due to other chemicals in the willow bark
while it's common for people to smoke cannabis today, there have always been herb mixtures that have been smoked for medicinal purposes because it is a quick way to get the medicine into the system
also, until very recently, humans have always lived with some level of smoke inhalation, so the lungs are designed to handle it and healing smoke has always been a thing...it allows for medicine to get into the system when eating is not possible