Enter the Sham Acupuncture

Despite a lack of scientific support, acupuncture is used in the treatment of depression, allergies, asthma, arthritis, smoking, migraines and so on.
It’s a quack treatment that seems to be accepted by a fairly large number of otherwise rational people.
The general attitude is that as long as an explanatory model “works” it is irrelevant to criticize it and ask Does acupuncture really work?. The “good” advice is that it works and if you’re good you won’t be ill.
Anne’s Anti-Quackery & Science Blog: Enter the Sham Acupuncture