I think it's a good idea to find out all you can--get ALL your questions answered to your satisfaction--before they go shooting steroids into your shoulder. Remember, it's your body--not theirs--so forget the cavelier godlike voice of the medicos: This is your REAL life, slimshady.

Here are a couple of forum links. You can find others using the Search link above.
Treatments: http://neurotalk.psychcentral.com/forum72.html
Chronic pain: http://neurotalk.psychcentral.com/forum10.html

Roam around, introduce yourself, ask questions. You'll find many who have faced your dilemma.

You have a home base here for info & support & s. Hope you make yourself comfy. Let us know how it goes Tuesday, whatever you decide.

Remember, please, that IT'S YOUR BODY. You have only one.