If so, how do you suppose it "works"?
Mr. Jack gave one good response.
Another reason it "works" is confirmation bias: people often, on their own, recover from their illnesses. If one such person just happens to be undergoing homeopathy therapy, then it will appear as if the homeopathy helped. Then we have one person, and that person's close associates, who now have "evidence" that homeopathy works.
Added by edit:
Actually, while I was thinking of confirmation bias, what I actually described was mere coincidence. Confirmation bias would be when one only notices these positive coincidents and doesn't notice the failures of the treatment.
Edited by Chiroptera, : No reason given.
In many respects, the Bible was the world's first Wikipedia article. -- Doug Brown (quoted by Carlin Romano in
The Chronicle Review)