My nephew goes to a chiropractor and swears by it. Like everything I don't know about, I tend to do massive research and read as much about it from lagit sources to get a better understanding of it. This is what I learned....
Basically chiropractors are lagit but to a certain extent. They can basically help out with basic pains because of joint discomfort and bad alignments in your spine. They cannot however cure long term, serious injures or disease's to the spine or bones.
Studies have shown they can give comfort and relief from basic stuff. I also didn't find any evidence of them doing more damage to you from it. I don't know, I'm going next week for the first time ever and I will see if it helps me out because I have neck and shoulder pains from boxing throughout the years.