My elbow was hurting really bad a couple weeks ago too. I looked up some stretches and ice it at least once a day (sometimes two). It's certainly not pain free yet, but it is much better!!!
I also have a good friend who is a chiropractor. He's been doing some Active Release Therapy (ART) on it about once a week that's really helping also.
If you're looking to be well before the fall league, do the stretches, ice down daily, and get a chiropractor to work out those muscles w/ some fairly painful ART.
The chiropractor doesn't really know much about bowling but he did recommend that I get a Robby's Band It so if I were you I'd continue to wear it while you bowl.