Chiropractic doesn't directly treat health conditions, it aims to resolve issues with homeostasis by improving the health of your nervous system, which can indirectly influence the health of other systems.
Some people think that Chiropractors are just quacks. I even had one guy tell me I probably got my degree from a Cracker Jack box. Another tried to convince me that he could get a Chiropractic degree and license online. I guess my best response to that is to verify the qualifications of the Chiropractor before they ever work on you. Cracker Jack boxes should only be used for an insulin spike and worthless prizes. Can you still even buy Cracker Jack?
The fact is that there is more evidence for the utilization of Chiropractic for back pain than any medical procedure. There is also mounting evidence and case studies showing the efficacy of Chiropractic for other health maladies. Chiropractors have been touting the benefits of their care for all kinds of health conditions. Heck, I was inspired to become a Chiropractor because of the help that I received with my history with asthma. Back then, there was very little good research that showed the positive relationship between Chiropractic and other health conditions. I began Chiropractic care because a Chiropractor gave me hope and I simply acted on faith. That may work for some people but others desire solid evidence. The good news is that every year we are getting more research that shows the efficacy of regular Chiropractic care and the positive benefits it provides.
However, there is one very important thing to understand as you peruse this or any other website for research on Chiropractic: Chiropractic does not treat health conditions like high blood pressure, ear infections, bed-wetting, asthma, diabetes, ulcers or any thing else. Chiropractic works at restoring a more homeostatic environment in your body through improving the health of your nerve system. Because your nerve system is the system that directly or indirectly controls or influences all of your other systems, health of those systems can improve when the health of your nerve system improves.
If you are the type of person that wants some research, this page is a good starting point for you. There will be many links for you to follow soon.