What can be done for a tiny amount of fluid in subdeltoid bursa?

Bursitis treatment: Subacromial bursal fluid can arise from an irritated bursa, a partial or full thickness rotator cuff tear, or injured acromioclavicular joint. Management depends upon the gravity and etiology. Steroid injections may be useful for any/all entities mentioned, combined with physical therapy, rest, & NSAIDs. Surgery may be necessary for recalcitrant symptoms that are unresponsive to nonop therapy > 3m