In reply to Dave Heaton:
How much running have you been doing? Common mistake is too much too soon. Running gives your tendons and ligaments a right battering and it can take a while for the adjustments to take place. Before you start thinking of solutions to ITBS you need to look at everything you're doing first. Are you running on a camber, up/down hill, unsuitable trainers, not warming up or stretching? Have a rest for about a month
then start again keeping these things in
mind. 10% increase a week as said above is a good rule of thumb. Read the Lore of
Running by Tim Noakes as it pretty much
gives you everything you needas a runner.
If symptoms persist go see your GP