BODY WATCH : WHAT’S THE DEAL? : Relief for That Pounding in Your Head

Whether your headache springs from traffic or other tension, you want fast--and cheap--relief. The options and the costs:

* A hot bath, water courtesy of the Department of Water and Power, Burbank, 3 cents.

* Regular strength acetaminophen, 24 pills, $3.37.

* Tylenol PM for pain with sleeplessness, 24 pills, $4.59.

* Sleep-It-Off Flents’ Light Shield mask, $8.29.