I think it's popular in Bangkok or Taipei, but in Singapore should be quite costly. I consulted one clinic here that does it, they said about $5k if I remember correctly.
Ah! Why everyone having same problems? I suspect its due to my sleeping posture and tremendous stress from work. My chiropractor is really helpful. You may like to try doctor mark from alpha chiropractic, key point beach road. I go to him around once to twice every week. Well, because I have neck pa...