I've been to a chiropractor before and it really does work, at least for the problem I was experiencing (which was some sort of simple alignment problem.) The guy basically just pushed on my spinal column in different directions and I could clearly feel things moving back into place. I definitely would not lump them in with the quackery that is homeopathy, as long as you stay within the bounds of "pushing bones into alignment" and stay away from things like "improve the chi flow throughout your chakra nodes" or some such nonsense.