Boston -- Children's Hospital Boston scientists say they've discovered a local anesthetic that provides long-lasting pain relief without affecting motor function.

Los Angeles, December 23 -- Aerosmith frontman Steven Tyler is back in rehab to tackle chronic pain and addiction to prescription painkillers, the consequences of his decade-long performance injuries.

Chicago, October 18: According to the findings of a new research chocolates and water serve a very important, common purpose: that of relieving pain.

Washington, August 8: In a ground-breaking research that could lead to better treatments for skin conditions, researchers have uncovered explicit nerve cells guilty of causing itchiness.