All the Time
I see my Chiropractor at least twice a week. I have 2 slipped discs, and went thru physical therapy, which didn't do much for me. My regular DR told me that my next step was back surgery to fuse the 3 vertebrae. I said no way. So I looked into alternatives, and the chiropractor was one.
A good friend works for an insurance company in risk management, and pointed out that my doctor prob pays like $100,00+ per year in malpractice insurance, and my chiropractor like $500. Hmmmm, sounds pretty safe. So I tried it.
And it worked! No surgery. I stopped for awhile when I moved because I couldn't find one that I liked. I've since moved back to the area, and have started seeing my old Chiropractor again. We're on the twice a week plan to correct the damage that I've done for the last 3 years, and then I'll go back to seeing him once a week, then down to once a month for maintainence.