I remember that back in the 50s my younger cousin had asthma real bad. His mother was the local curanda, the one who the locals went to for cures. My young cousin was always smoking something that helped his asthma. I
am sure it was mj. I also know others who smoke mj, and have done so for years, and they seem to get along OK; no problems working or with the law. So my conclusion is that if a person needs it, and it works, smoke it.