While calcification can break up on it's own, if you are in pain, that may be too long to wait...this looks to be a good answer and alternative for immediately relief. BD
Ultrasound-guided percutaneous (through the skin) therapy represents an effective and inexpensive alternative to surgery that is less stressful for the patient. For the 10-minute procedure, the shoulder is anesthetized and, with ultrasound guidance, a radiologist injects a saline solution into the rotator cuff to wash the area and break up the calcium. A second needle is used to aspirate, or withdraw, the calcium residue. Recovery time is about an hour. Calcifications that are completely treated do not ever return.