It depends on the cause of your SI joint pain. Acute pain—like that caused by a traumatic injury—may go away on its own as the area heals or with conservative treatment. For chronic pain in the sacroiliac joint, the best treatment usually involves physical therapy to repair asymmetries, combined with reducing or eliminating habits that stress the joint. If your SI joint pain is caused by another condition, such as arthritis, you'll need to treat the underlying condition.