You can do IT-band stretching exercises on a regular (daily) basis as well which will certainly help. (I had to go to a sports physiotherapist a few years back because of knee problems while walking or going up steps, and I was fearing the worst... and that was the surprising diagnosis as well.)
I don't recommend a chiropractor. No knock against any that might be around here, but I believe a physiotherapist is the best long-term solution.
She told me that the basis stretch to do was as follows:
1. Lie on back, legs bent comfortable towards you (like this o_/\ )
2. Put one leg over the other, keeping both bent (i.e. put your ankle over the other knee, making a sort of "figure four"... but don't go as far as your knee, which would be the traditional "crossed legs" motion)
3. Gently pull the leg towards yourself without straining (the leg that's still on the floor... which now has the other leg's ankle resting comfortably behind the knee)
4. Repeat with other leg, etc. etc. You'll notice yourself able to stretch it further as you keep doing this of course.
I hope you can figure out what I'm trying to say here, but I'm sure you can find pictures of this on the internet. It's really easy though! In fact at first I had my doubts whether it was actually being effective because it didn't seem to be "stretching" anything, but after a couple weeks I didn't have any more problems.
greg