New way to relieve sunburn pain?

We know we're supposed to lather on the sunscreen before going outside.

July 7, 2011 2:25:53 PM PDT
If you've ever had sunburn, you know how painful it can be. Now researchers think they know why it hurts so much.

A study from England has isolated a molecule in sunburned skin that triggers the pain. It's called CXCL5.

What the molecule does is activate sensory nerve fibers to cause pain and tenderness. Authors reporting in the journal Science Translational Medicine say targeting the molecule could lead to new pain relievers.

The finding may even help researchers better understand how pain works in other inflammatory conditions such as arthritis and cystitis.