In reply to climber007:
Hi, you don't say exactly where the pain is in your elbow, but if it's on the outside where you can feel a bony lump that the tendons originate from then it's likely to be 'tennis elbow', if its on the inside then probably 'golfer's elbow'. Through climbing you could be prone to either, this is worth a read:
http://www.nicros.com/training/articles/treating-climbers-elbow/
There are other causes of elbow pain such as bursitis or tunnel syndrome, in which case if the advice given in this article and by the folk above doesn't work then it's worth heading to the doc for a physio referral. It may be that you have a specific area of muscle weakness that needs addressing. You can get elbow supports that may help things when climbing, but tbh it's better to find and treat the original cause rather than to try and mask it. Ditto the advice from others re resting it until it's better (i've got to say sensible things like that because i'm a physio, but i freely admit to never taking my own advice and to spending two years running on a dodgy knee whilst munching brufen, thus ensuring that I now have near-constant knee pain whilst on the hill - clever girl!). good luck getting it sorted