Address: 8686 Bay Parkway, Suite M4 Brooklyn, NY 11214 Phone: 646-647-8690 Joint injections can pinpoint and alleviate pain caused by irritation or injury to the affected joint(s). Under ultrasound or using fluoroscopic guidance (x-ray imaging), a pain specialist injects a local anesthetic into the affected joint. If this anesthetic relieves the patient’s pain, the diagnosis is confirmed. A corticosteroid medication, a robust and long-acting medicine reduces inflammation and provides pain relief over an extended period, is also injected.